Patent google patent - UNrrn TATES PATENT OFFICE. ALEXANDER GLEASON, OF BUFFALO, NEIV YORK, ASSIGNOR TO THE BUF FALO ELEOTROTYPE AND ENGRAVING COMPANY, OF SAME PLACE. TIME-CHART. SPECIFICATION forming part of Letters Patent No. 497,917, dated May 23, 1893. Application filed August 15, 1892.

 
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OF DAY'lUX, OlllU. ' FLYING-MACHINE. fipeciflcatiqn ofLettera Patent. .Eatented May 22, 1906. Application fi1 ad'Mai-ch 28,190- Serial No. 149.220; 1 and WILBUR Wmen'r, citizens of-the United n of Montgomery, and State of .0. States, residing in the city of Da ton, county no, have invented as eciiicat'ion; ur invention rlatesto that class …Patent: A patent is a government license that gives the holder exclusive rights to a process, design or new invention for a designated period of time. Applications for patents are usually handled ...What is Google Patents. Google Patents is Google's own patent search tool. It draws on patents from more than 100 of the biggest patent offices from around the world, enabling you to search across more than 120 million documents. As such it rivals the EPO's Espacenet for coverage. Full-text patent documents are indexed from 20 of the …2005-08-30. Method and apparatus for personalized conference and hands-free telephony using audio beaming. US11082763B2 ( en ) 2021-08-03. Handheld acoustic hailing and disruption systems and methods. US20170148466A1 ( en ) 2017-05-25. Method and system for reducing background sounds in a noisy environment.Publication Publication Date Title. US4996044A 1991-02-26 Lipstick formulation and method. CA1333572C 1994-12-20 High gloss, high-shine lipstick. KR100654062B1 2006-12-05 Partial Make-up Cosmetic Composition of Solid Type and Water-in-oil Type. AU650760B2 1994-06-30 Coloured cosmetic sticks.Publication Publication Date Title. US223898A 1880-01-27 Electric lamp. US2075910A 1937-04-06 Thermionic cathode. US1023485A 1912-04-16 Illuminant for electrical incandescent lamps. US3130073A 1964-04-21 Method of providing molybdenum wire with a carbon coating. US2467710A 1949-04-19 Incandescent lamp.The touch screen 70 is a transparent panel that is positioned in front of the display device 68. The touch screen 70 may be integrated with the display device 68 or it may be a separate component. The touch screen 70 is configured to receive input from a user's touch and to send this information to the processor 56.Publication Publication Date Title. US1773079A 1930-08-12 Method of preparing food products. US1810864A 1931-06-16 Process for the production of food product bricks. US2286644A 1942-06-16 Method and apparatus for processing potatoes. US1998431A 1935-04-23 Method and apparatus for freezing food products.Publication Publication Date Title. US4750A 1846-09-10 Improvement in sewing-machines. US171558A 1875-12-28 Improvement in sewing-machines. US28785A 1860-06-19 Improvement in sewing-machines. US25913A 1859-10-25 Improvement in sewing-machines. US34748A 1862-03-25 Improvement in sewing-machines.The lithium-ion battery of claim 37, further comprising a polymeric separator provided intermediate the positive electrode and the negative electrode. 47. The lithium-ion battery of claim 37, wherein the lithium-ion battery has a capacity between approximately 10 mAh and 1000 mAh. 48.Description. Claims (79) Hide Dependent. The invention relates to a wheelchair for example a wheelchair for an active user, a method of manufacturing a wheelchair and a wheel for a wheelchair. In further aspects the invention relates to a wheelchair, a footrest for a wheelchair, a wheelchair having a light, and a seat back for a wheelchair, a ... Google Patents is a search engine from Google that indexes patents and patent applications from the United States Patent and Trademark Office, European Patent Office, and World Intellectual Property Organization. These documents include the entire collection of granted patents and published patent applications from each database. 3-D diamond printing using a pre-ceramic polymer with a nanoparticle filler. JP2015171780A ( en ) *. 2014-03-12. 2015-10-01. セイコーエプソン株式会社. Method for manufacturing three-dimensional molded article, apparatus for manufacturing three-dimensional molded article, and three-dimensional molded article.The principle of operation of the silent subliminal presentation system is as follows: An audio signal in the upper frequency region of the audio spectrum (for example, 14,500 Hz) is modulated with the desired information. The type of modulation may be any type suitable for subliminal applications; frequency modulation (FM), phase modulation ...6. The controller of claim 1, wherein the input device is a button, the button being configured to activate a sharing interface for sharing recorded gameplay to a social graph of a user. 7. The controller of claim 6, wherein sharing recorded gameplay includes sharing one or more of an image or a video clip.The touch screen 70 is a transparent panel that is positioned in front of the display device 68. The touch screen 70 may be integrated with the display device 68 or it may be a separate component. The touch screen 70 is configured to receive input from a user's touch and to send this information to the processor 56.US7955605B2 - Multivalent pneumococcal polysaccharide-protein conjugate composition - Google Patents Multivalent pneumococcal polysaccharide-protein conjugate composition Download PDF Info Publication number ... as described in International Patent Application WO2004/083251 [38]), E. coli LT, E. coli ST, and exotoxin A from Pseudomonas … Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) 1916-11-06 Filing date 1917-12-10 Publication date 1920-04-27 1916-02-27 Priority to GB2868/16A priority Critical patent/GB127289A/en Мы хотели бы показать здесь описание, но сайт, который вы просматриваете, этого не позволяет.UNITED STATES PATENT OFFICE. NIKOLA TESLA, OF NEW YORK, N. Y., ASSIGNOB O F ONE-HALF TO CHARLES F. PECK, OF ENGLEWOOD, NEW JERSEY. ELECTRO-MAGN-ETIC MOTOR. SPECIFICATION forming part of Letters Patent No. 381.968, dated May-1, 1888. Application filed October 12. 1857.A slide-stopacuated by the magazine-follower to arrest the breech-slide in the open position when the magazine is empty,'has beenheretofore described and shown in the United States Patent- No. 708794, granted to me September 9, 1902, but the construction of the slide-stop as an integral part of the handle of the pivot-pin securing "the barrel and the breech …Cannabinoids have been found to have antioxidant properties, unrelated to NMDA receptor antagonism. This new found property makes cannabinoids useful in the treatment and prophylaxis of wide variety of oxidation associated diseases, such as ischemic, age-related, inflammatory and autoimmune diseases. The cannabinoids are found to have particular …Using PATENTSCOPE you can search 116.1 million patent documents including 4.8 million published international patent applications (PCT). Detailed coverage …LOT Network Launched in 2014 by Canon, Google, Red Hat and others, LOT Network administers an industry-led, networked, royalty-free patent cross license agreement affecting patents transferred to ...Experience: Google · Education: The George Washington University Law School · Location: Mountain View, California, United States · 500+ connections on LinkedIn. ... An Industry Patent and IP ...What is Google Patents. Google Patents is Google's own patent search tool. It draws on patents from more than 100 of the biggest patent offices from around the world, enabling you to search across more than 120 million documents. As such it rivals the EPO's Espacenet for coverage. Full-text patent documents are indexed from 20 of the …UNITED STATES PATENT OFFICE. NIKOLA TESLA, OF NEW YORK, N. Y., ASSIGNOB O F ONE-HALF TO CHARLES F. PECK, OF ENGLEWOOD, NEW JERSEY. ELECTRO-MAGN-ETIC MOTOR. SPECIFICATION forming part of Letters Patent No. 381.968, dated May-1, 1888. Application filed October 12. 1857. 2. An electronic cigarette, comprising: a housing; a mouthpiece on the housing; an LED at a first end of the housing; an air inlet for providing air into the housing; a battery and a sensor electrically connected to an electronic circuit board within the housing, with the sensor in a stream passage in the housing; A magnesium-counter ion composition provided herein may be useful for administration to a subject presenting magnesium deficiency, mild cognitive impairment, Alzheimer's disease, attention deficit hyperactivity disorder, ALS, Parkinson's disease, diabetes, migraine, anxiety disorder, mood disorder, and/or hypertension.Google's most cited patents tend to revolve around search algorithms, data processing, and advertising technologies: 1. PageRank Algorithm: Although this was one of Google's …Google patents database is built using patents from 17 patent offices* around the world. The database contains over 87 million patent publications including. Search Techniques. You can directly type text in the search bar. The search engine splits search strings and searches individual keywords in the search string.Abstract. Free Energy is a perpetual motion machine that operates indefinitely and independently without any other source of fuel, electricity, or any other renewable energy source other than gravity. Free Energy produces more energy than the amount of energy necessary to operate the machine itself. Never before has a machine … Example 3 of said patent discloses that 18 PPM of said crystal devices could totally suppress the AIDS virus (page 6, line 5). Subsequent to the filing of the aforementioned patent, further testing revealed complete 100% destruction of the AIDS virus in vitro at 20 PPM, and the fact that said devices were harmless when ingested and inhaled ... Publication Publication Date Title. US1773079A 1930-08-12 Method of preparing food products. US1810864A 1931-06-16 Process for the production of food product bricks. US2286644A 1942-06-16 Method and apparatus for processing potatoes. US1998431A 1935-04-23 Method and apparatus for freezing food products.US8046721B2 - Unlocking a device by performing gestures on an unlock image - Google Patents. A device with a touch-sensitive display may be unlocked via gestures performed on the touch-sensitive display. The device is unlocked if contact with the display corresponds to a predefined gesture for unlocking the device. The device displays one or ...Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) 1963-05-22 Filing date 1964-05-19 ... (U.S. Patent No. 2,936,266) have described the production of complex mixtures of alkaloids consisting of ergotoxine, ergotinine, ergotamine, ergotaminine, ergosine ergosinine, ergometrine ...Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) 2014-05-28 Filing date 2015-05-27 Publication date 2016-07-19 2014-10-02 Priority claimed from US14/505,478 external-priority patent/US9537811B2/en 2015-05-27 Priority to US14/723,400 priority Critical patent/US9396354B1/enThe present invention relates to liquid pharmaceutical compositions comprising the GLP-1 peptide semaglutide and no more than 0.01% (w/w) phenol. Surprisingly, the present inventors found that such compositions have improved chemical and/or physical stability. In some embodiments the composition comprises no phenol.Step #2 Understand The Context Of The Patent. A patent is like an elephant. An elephant has a trunk, big ears, a little tail and legs thick as trees. Similarly, a patent is made up of multiple ...We would like to show you a description here but the site won’t allow us.The invention belongs to the field of nano materials and biomedicine, and relates to a vaccine, in particular to development of 2019-nCoV coronavirus nuclear recombinant nano vaccine. The invention also comprises a preparation method of the vaccine and application of the vaccine in animal experiments. The new corona vaccine contains graphene oxide, …Feb 27, 2024 · Google Patents is a free online search engine and database provided by Google that allows users to search and explore millions of patents from around the world. It provides access to a vast collection of patent documents, including granted patents, patent applications, and patent publications. Google Patents is useful in a wide range of ... Description. Claims (79) Hide Dependent. The invention relates to a wheelchair for example a wheelchair for an active user, a method of manufacturing a wheelchair and a wheel for a wheelchair. In further aspects the invention relates to a wheelchair, a footrest for a wheelchair, a wheelchair having a light, and a seat back for a wheelchair, a ...The present invention provides compositions and systems for delivery of nanocarriers to cells of the immune system. The invention provides vaccine nanocarriers capable of stimulating an immune response in T cells and/or B cells, in some embodiments, comprising at least one immunomodulatory agent, and optionally comprising at last one targeting …Additional advanced tip – Google Patents also includes the capability of searching non-patent literature using all the tips and tricks mentioned above. A user may simply select the “Scholar” look-alike logo to include the non-patent literature (the “Bulb” look-alike logo is to search the patent literature ).Oct 18, 2018 · Public Search Facility. The United States Patent and Trademark Office (USPTO) Public Search Facility located in Alexandria, VA provides the public access to patent and trademark information in a variety of formats including on-line, microfilm, and print. Trained staff are available to assist public users. 2.1. Issued Patents. Question: What is an issued patent and what protection does it afford to the inventor? Answer: The term “patent” is derived from “letters of patents patent”; an open letter by which a sovereign entity conferred a special privilege or right on subject. The first recorded patent was granted to Filippo Brunelleschi in 1421 in Florence, Italy for an …an assay is used to determine whether the patient has KRas G12D mutation using a sample (e.g., a biological sample or a biopsy sample (e.g., a paraffin-embedded biopsy sample) from a patient (e.g., a patient suspected of having a KRas G12D-associated cancer, a patient having one or more symptoms of a KRas G12D-associated cancer, and/or a …Publication Publication Date Title. US223898A 1880-01-27 Electric lamp. US2075910A 1937-04-06 Thermionic cathode. US1023485A 1912-04-16 Illuminant for electrical incandescent lamps. US3130073A 1964-04-21 Method of providing molybdenum wire with a carbon coating. US2467710A 1949-04-19 Incandescent lamp.Abstract. Free Energy is a perpetual motion machine that operates indefinitely and independently without any other source of fuel, electricity, or any other renewable energy source other than gravity. Free Energy produces more energy than the amount of energy necessary to operate the machine itself. Never before has a machine …Grant of patent or utility model: 2011-06-01: GR01: Patent grant: 2017-07-25: CP03: Change of name, title or address: Address after: 130033 No. 1183, Yingkou Road, Changchun economic and Technological Development Zone, Jilin, China. Patentee after: FAW rich road extension Changchun vian automotive metal components Co. Ltd.US20200054559A1. The present invention provides compositions and systems for delivery of nanocarriers to cells of the immune system. The invention provides vaccine nanocarriers capable of stimulating an immune response in T cells and/or in B cells, in some embodiments, comprising at least one immunomodulatory agent, and optionally …Provided herein is a novel method of game play and game components that in one embodiment are in the form of trading cards (10, 12, 40, 42, 44, 48, 54, 60, 64). However, the game components may take other forms, such as a board game, or the game may be played in different media, such as electronic games, video games, computer games, and …Мы хотели бы показать здесь описание, но сайт, который вы просматриваете, этого не позволяет.The present invention is based upon the isolation and identification of a new human Ebola virus species, EboBun. EboBun was isolated from the patients suffering from hemorrhagic fever in a recent outbreak in Uganda. The isolated virus is a member of the Filoviridae family, a family of negative sense RNA viruses. Search within the title, abstract, claims, or full patent document: You can restrict your search to a specific field using field names.. Use TI= to search in the title, AB= for the abstract, CL ... Publication Publication Date Title. US1773079A 1930-08-12 Method of preparing food products. US1810864A 1931-06-16 Process for the production of food product bricks. US2286644A 1942-06-16 Method and apparatus for processing potatoes. US1998431A 1935-04-23 Method and apparatus for freezing food products.The smart glass 100 includes a first camera 110, a second camera 120, a glass 130, a controller 140, a microphone 150, an audio output device 160, a touch sensor 170, a memory 180, and a wireless communication device 190. [0027] The components included in the smart glass 100 are described below. Example 3 of said patent discloses that 18 PPM of said crystal devices could totally suppress the AIDS virus (page 6, line 5). Subsequent to the filing of the aforementioned patent, further testing revealed complete 100% destruction of the AIDS virus in vitro at 20 PPM, and the fact that said devices were harmless when ingested and inhaled ... Description. Claims (79) Hide Dependent. The invention relates to a wheelchair for example a wheelchair for an active user, a method of manufacturing a wheelchair and a wheel for a wheelchair. In further aspects the invention relates to a wheelchair, a footrest for a wheelchair, a wheelchair having a light, and a seat back for a wheelchair, a ...The principle of operation of the silent subliminal presentation system is as follows: An audio signal in the upper frequency region of the audio spectrum (for example, 14,500 Hz) is modulated with the desired information. The type of modulation may be any type suitable for subliminal applications; frequency modulation (FM), phase modulation ...Abstract. An intelligent automated assistant system engages with the user in an integrated, conversational manner using natural language dialog, and invokes external services when appropriate to obtain information or perform various actions. The system can be implemented using any of a number of different platforms, such as the web, email ...The invention describes improved methods and compositions for producing a recombinant protein, e.g., an antibody, in mammalian cell culture. In addition, the invention provides improved cell culture media, including improved production media, feed solutions, and combination feeds, which may be used to improve protein productivity in mammalian cell …Provided herein is a novel method of game play and game components that in one embodiment are in the form of trading cards (10, 12, 40, 42, 44, 48, 54, 60, 64). However, the game components may take other forms, such as a board game, or the game may be played in different media, such as electronic games, video games, computer games, and …Publication Publication Date Title. US174465A 1876-03-07 Improvement in telegraphy. Hogan 1913 The heterodyne receiving System, and notes on the recent arlington-salem tests. US388333A 1888-08-21 Telegraph-receiver. US382195A 1888-05-01 Chaeles selden.Abstract. The invention provides for application of Salicylic Acid, in proportion and concentration depending upon the size of cancer, onto or into a cancerous area in the body, in order to reduce and remove the cancer. Upon application, Salicylic Acid will destroy all the extra cells in the body that form cancer and rid the body of cancer.A vaccine is the best measure for the effective prevention and control of COVID-19. There are more than 292 COVID-19 candidates’ vaccines being developed as of July 2021 of which 184 are in human preclinical trials. A patent provides protection and a marketing monopoly to the inventor of an invention for a specified period.About Google Patents. Overview. Search and read the full text of patents from around the world. Next: Coverage. Patents from around the world, translated. Plus technical papers …The invention belongs to the field of nano materials and biomedicine, and relates to a vaccine, in particular to development of 2019-nCoV coronavirus nuclear recombinant nano vaccine. The invention also comprises a preparation method of the vaccine and application of the vaccine in animal experiments. The new corona vaccine contains graphene oxide, … Abstract. A spacecraft having a triangular hull with vertical electrostatic line charges on each corner that produce a horizontal electric field parallel to the sides of the hull. This field, interacting with a plane wave emitted by antennas on the side of the hull, generates a force per volume combining both lift and propulsion. The smart glass 100 includes a first camera 110, a second camera 120, a glass 130, a controller 140, a microphone 150, an audio output device 160, a touch sensor 170, a memory 180, and a wireless communication device 190. [0027] The components included in the smart glass 100 are described below.2. A coil composed'of contiguous or adjacent insulated conductors electrically con; nected in seriesand having a potential ditference of such value as to give to the coil as a whole, a capacity sufficient to neutralize its self-induction, as set forth. NIKOLA TESLA. ` …Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) 1963-05-22 Filing date 1964-05-19 ... (U.S. Patent No. 2,936,266) have described the production of complex mixtures of alkaloids consisting of ergotoxine, ergotinine, ergotamine, ergotaminine, ergosine ergosinine, ergometrine ...Jun 4, 2021 · Formula to generate search URLs. This file: Google spreadsheet 10. Filter search results. Lastly, on the search result page, you can apply different filters on the “Patent Office”, the ... Opens Google Patents for a selected patent identifier. This solution allows you to quickly open Google Patents for a selected patent identifier. Select a patent identifier in text, then open the context menu and select "Open Google Patents" from the menu. You can normally open the context menu by right-clicking.Google Patents Advanced Search. Search and read the full text of patents from around the world with Google Patents, and find prior art in our index of non-patent literature.an assay is used to determine whether the patient has KRas G12D mutation using a sample (e.g., a biological sample or a biopsy sample (e.g., a paraffin-embedded biopsy sample) from a patient (e.g., a patient suspected of having a KRas G12D-associated cancer, a patient having one or more symptoms of a KRas G12D-associated cancer, and/or a …Search and read the full text of patents from around the world with Google Patents, and find prior art in our index of non-patent literature.US8046721B2 - Unlocking a device by performing gestures on an unlock image - Google Patents. A device with a touch-sensitive display may be unlocked via gestures performed on the touch-sensitive display. The device is unlocked if contact with the display corresponds to a predefined gesture for unlocking the device. The device displays one or ... The invention discloses a patent searching system, which comprises an IPC (Information Processing Center) classification searching module, an applicant searching module, an application number searching module, a patent display module and a statistic analysis module, wherein all modules are connected through a network, share out the work and cooperate with each other; and a small-sized database ... UNITED STATES PATENT OFFICE. NIKOLA TESLA, OF NEW YORK, N. Y., ASSIGNOB O F ONE-HALF TO CHARLES F. PECK, OF ENGLEWOOD, NEW JERSEY. ELECTRO-MAGN-ETIC MOTOR. SPECIFICATION forming part of Letters Patent No. 381.968, dated May-1, 1888. Application filed October 12. 1857.6. The controller of claim 1, wherein the input device is a button, the button being configured to activate a sharing interface for sharing recorded gameplay to a social graph of a user. 7. The controller of claim 6, wherein sharing recorded gameplay includes sharing one or more of an image or a video clip.US8983682B1 * 2012-12-28 2015-03-17 Google Inc. Unlocking mobile-device and/or unmanned aerial vehicle capability in an emergency situation. US9051043B1 * 2012-12-28 2015-06-09 Google Inc. Providing emergency medical services using unmanned aerial vehicles. USD741751S1 * 2014-12-11 2015-10-27 SenseFly Ltd. Drone.May 26, 2020 · Google Patents is a search platform with 120+ million patent dataset covering in 100+ jurisdiction that makes it one of the best available patent databases. April 24, 2024 +1-202-455-5058 [email protected]

Patent Citations (84) Publication number Priority date Publication date Assignee Title. Family To Family Citations. 1983-04-08 1989-03-28 Genentech, Inc. Recombinant immunoglobin preparations. 1986-03-27 1993-07-06 Medical Research Council Recombinant altered antibodies and methods of making altered antibodies.. Character aj

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Google's most cited patents tend to revolve around search algorithms, data processing, and advertising technologies: 1. PageRank Algorithm: Although this was one of Google's …Patent: A patent is a government license that gives the holder exclusive rights to a process, design or new invention for a designated period of time. Applications for patents are usually handled ... Google Patents, a patent search engine created by Google, includes over 120 million patent publications from 100+ patent offices around the world, as well as many technical documents and books indexed in Google Scholar and Google Books. It currently indexes full-text documents from the following Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) 1996-12-13 Filing date 2002-04-24 Publication date 2003-07-01 ... 2002-09-05 Publication of US20020123775A1 publication Critical patent/US20020123775A1/en 2003-07-01 Application granted granted CriticalUS2082748A 1937-06-01 Combined socket and slotted screw. US3108623A 1963-10-29 Tools for recessed head fasteners. US2046840A 1936-07-07 Screw driver. US2046839A 1936-07-07 Screw. US3237506A 1966-03-01 Recessed head fasteners. US2046343A 1936-07-07 Screw. US2066484A 1937-01-05 Screw. US1910182A 1933-05-23 Slotted socket …Oct 18, 2018 · Public Search Facility. The United States Patent and Trademark Office (USPTO) Public Search Facility located in Alexandria, VA provides the public access to patent and trademark information in a variety of formats including on-line, microfilm, and print. Trained staff are available to assist public users. Delivery: As used herein, “delivery” refers to the act or manner of delivering a compound, substance, entity, moiety, cargo or payload. Delivery Agent: As used herein, “delivery agent” refers to any substance which facilitates, at least in part, the in vivo delivery of a nucleic acid molecule to targeted cells.Mar 28, 2024 · Google patents database is built using patents from 17 patent offices* around the world. The database contains over 87 million patent publications including. Search Techniques. You can directly type text in the search bar. The search engine splits search strings and searches individual keywords in the search string. The device of claim 1, further comprising a compressed gas source within the container and piped to release compressed gas within the mosquito breeding bin. US14/549,3052014-11-202014-11-20Toxic mosquito aerial release system ActiveUS8967029B1(en) Priority Applications (1) Application Number. SUMMARY OF THE INVENTION [0007] In one aspect of the invention, compounds are provided that inhibit KRas G12D activity. In certain embodiments, the compounds are represented by Formula (I): Formula (I) [0008] or a pharmaceutically acceptable salt thereof: [0009] wherein: [00010] R 1 is hydrogen, hydroxy, halogen, C1 – C3 alkyl, C1 - C3 ... 2. An electronic cigarette, comprising: a housing; a mouthpiece on the housing; an LED at a first end of the housing; an air inlet for providing air into the housing; a battery and a sensor electrically connected to an electronic circuit board within the housing, with the sensor in a stream passage in the housing;US2082748A 1937-06-01 Combined socket and slotted screw. US3108623A 1963-10-29 Tools for recessed head fasteners. US2046840A 1936-07-07 Screw driver. US2046839A 1936-07-07 Screw. US3237506A 1966-03-01 Recessed head fasteners. US2046343A 1936-07-07 Screw. US2066484A 1937-01-05 Screw. US1910182A 1933-05-23 Slotted socket ….

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