Name Size Creator Creation Date Labels Comment  
PDF File 2647957.pdf 1.05 MB Shaun Ewing Aug 04, 1953 00:00
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US-2647957-A // Transistor circuit // Mallinckrodt Charles O. // Bell Telephone Labor Inc
PDF File 2647212.pdf 1.26 MB Shaun Ewing Jul 28, 1953 00:00
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US-2647212-A // Antenna system // Feldman Carl B. H. // Bell Telephone Labor Inc
PDF File 2646523.pdf 1010 kB Shaun Ewing Jul 21, 1953 00:00
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US-2646523-A // Multicathode gaseous discharge device // Gugelberg Hans L. Von // Bell Telephone Labor Inc
PDF File 2646464.pdf 499 kB Shaun Ewing Jul 21, 1953 00:00
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US-2646464-A // Polar relay biasing circuit // Callaway William B. // Bell Telephone Labor Inc
PDF File 2645727.pdf 2.12 MB Shaun Ewing Jul 14, 1953 00:00
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US-2645727-A // Focusing ultrasonic radiator // Willard Gerald W. // Bell Telephone Labor Inc
PDF File 2645700.pdf 386 kB Shaun Ewing Jul 14, 1953 00:00
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US-2645700-A // Semiconductor of mixed nickel, manganese, and iron oxides // Morin Francis J. // Bell Telephone Labor Inc
PDF File 2645681.pdf 667 kB Shaun Ewing Jul 14, 1953 00:00
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US-2645681-A // Telephone equalizer circuit // Green Estill I. // Bell Telephone Labor Inc
PDF File 2644915.pdf 341 kB Shaun Ewing Jul 07, 1953 00:00
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US-2644915-A // Selenium rectifier and method of its production // Thurber Elmer A. ; Wooten Leland A. // Bell Telephone Labor Inc
PDF File 2644914.pdf 404 kB Shaun Ewing Jul 07, 1953 00:00
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US-2644914-A // Multicontact semiconductor translating device // Kircher Reymond J. // Bell Telephone Labor Inc
PDF File 2644904.pdf 396 kB Shaun Ewing Jul 07, 1953 00:00
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US-2644904-A // Crystal unit // Barry Joseph F. ; Ruggles David M. // Bell Telephone Labor Inc
PDF File 2644122.pdf 272 kB Shaun Ewing Jun 30, 1953 00:00
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US-2644122-A // Capacitor // Boardman Edward M. ; Wooley Merwyn C. // Bell Telephone Labor Inc
PDF File 2644038.pdf 375 kB Shaun Ewing Jun 30, 1953 00:00
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US-2644038-A // Keyboard mechanism for teletypewriters // Branson David E. // Bell Telephone Labor Inc
PDF File 2644036.pdf 548 kB Shaun Ewing Jun 30, 1953 00:00
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US-2644036-A // Receiver for two-tone carrier systems // Jones Theodore A. // Bell Telephone Labor Inc
PDF File 2642500.pdf 1.59 MB Shaun Ewing Jun 16, 1953 00:00
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US-2642500-A // Voice frequency signaling circuit // Fritschi Walter W. ; Soffel Robert O. ; Weaver Allan // Bell Telephone Labor Inc
PDF File 2642498.pdf 969 kB Shaun Ewing Jun 16, 1953 00:00
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US-2642498-A // Dial telephone system-digit absorbing selector circuit // Riddell George ; Soucy Harold A. // Bell Telephone Labor Inc
PDF File 2642493.pdf 1.73 MB Shaun Ewing Jun 16, 1953 00:00
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US-2642493-A // Automatic message accounting system // Locke George A. ; Weaver Allan // Bell Telephone Labor Inc
PDF File 2642473.pdf 478 kB Shaun Ewing Jun 16, 1953 00:00
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US-2642473-A // Wave translating system // Jr. John G. Kreer, // Bell Telephone Labor Inc
PDF File 2642415.pdf 278 kB Shaun Ewing Jun 16, 1953 00:00
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US-2642415-A // Silyl aromatic compounds // Winslow Field H. // Bell Telephone Labor Inc
PDF File 2642281.pdf 368 kB Shaun Ewing Jun 16, 1953 00:00
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US-2642281-A // Apparatus for the winding of endless bands // Buhrendorf Frederick G. // Bell Telephone Labor Inc
PDF File 2641757.pdf 1.52 MB Shaun Ewing Jun 09, 1953 00:00
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US-2641757-A // Automatic multichannel selection // Hoth Daniel F. ; Soffel Robert O. // Bell Telephone Labor Inc
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