Name Size Creator Creation Date Labels Comment  
PDF File 2077172.pdf 442 kB Shaun Ewing Apr 13, 1937 00:00
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US-2077172-A // Telegraph signal distortion measuring device // Hearn Richard B. // Bell Telephone Labor Inc
PDF File 2077177.pdf 540 kB Shaun Ewing Apr 13, 1937 00:00
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US-2077177-A // Electron discharge device // Mcnally James O. // Bell Telephone Labor Inc
PDF File 2077193.pdf 469 kB Shaun Ewing Apr 13, 1937 00:00
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US-2077193-A // Recording system // Wente Edward C. // Bell Telephone Labor Inc
PDF File 2077917.pdf 296 kB Shaun Ewing Apr 20, 1937 00:00
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US-2077917-A // Telegraph repeater // Cummings George C. // Bell Telephone Labor Inc
PDF File 2077925.pdf 952 kB Shaun Ewing Apr 20, 1937 00:00
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US-2077925-A // Tape pulling mechanism // Gent Edgar W. // Bell Telephone Labor Inc
PDF File 2077926.pdf 516 kB Shaun Ewing Apr 20, 1937 00:00
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US-2077926-A // Sound recording system // Gibson Robert D. // Bell Telephone Labor Inc
PDF File 2077936.pdf 1.57 MB Shaun Ewing Apr 20, 1937 00:00
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US-2077936-A // Telegraph circuit // Kinkead Fullerton S. ; Locke George A. // Bell Telephone Labor Inc
PDF File 2078974.pdf 312 kB Shaun Ewing May 04, 1937 00:00
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US-2078974-A // Modulating system // Riesz Robert R. // Bell Telephone Labor Inc
PDF File 2079685.pdf 484 kB Shaun Ewing May 11, 1937 00:00
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US-2079685-A // Telegraph exchange system // Fitch Karl E. ; Kinkead Fullerton S. // Bell Telephone Labor Inc
PDF File 2079689.pdf 730 kB Shaun Ewing May 11, 1937 00:00
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US-2079689-A // Repeating station for ocean cables // Gorton William S. // Bell Telephone Labor Inc
PDF File 2079690.pdf 343 kB Shaun Ewing May 11, 1937 00:00
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US-2079690-A // Method of making resistance devices // Grisdale Richard O. // Bell Telephone Labor Inc
PDF File 2079693.pdf 657 kB Shaun Ewing May 11, 1937 00:00
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US-2079693-A // Sound reproducer // Lovell Clarence A. // Bell Telephone Labor Inc
PDF File 2079694.pdf 553 kB Shaun Ewing May 11, 1937 00:00
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US-2079694-A // Acoustic amplifier // Lovell Clarence A. ; Wegel Raymond L. // Bell Telephone Labor Inc
PDF File 2079697.pdf 443 kB Shaun Ewing May 11, 1937 00:00
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US-2079697-A // Loading coil case // Ranges John E. // Bell Telephone Labor Inc
PDF File 2080217.pdf 995 kB Shaun Ewing May 11, 1937 00:00
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US-2080217-A // Apparatus and method for remedying crosstalk // Weaver Myron A. // Bell Telephone Labor Inc
PDF File 2080459.pdf 478 kB Shaun Ewing May 18, 1937 00:00
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US-2080459-A // Modulating system // Caruthers Robert S. // Bell Telephone Labor Inc
PDF File 2080473.pdf 237 kB Shaun Ewing May 18, 1937 00:00
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US-2080473-A // Loading coil case // Greenidge Ralph M.c. // Bell Telephone Labor Inc
PDF File 2080491.pdf 296 kB Shaun Ewing May 18, 1937 00:00
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US-2080491-A // Conducting system // Kreisher Claude // Bell Telephone Labor Inc
PDF File 2081405.pdf 569 kB Shaun Ewing May 25, 1937 00:00
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US-2081405-A // Wave filter // Mason Warren P. // Bell Telephone Labor Inc
PDF File 2081411.pdf 526 kB Shaun Ewing May 25, 1937 00:00
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US-2081411-A // Synchronous motor // Stoller Hugh M. ; Morton Edmund R. // Bell Telephone Labor Inc
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