Name Size Creator Creation Date Labels Comment  
PDF File 2406032.pdf 418 kB Shaun Ewing Aug 20, 1946 00:00
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US-2406032-A // Telegraph signal enciphering mechanism // Parker Ralzemond D. // Bell Telephone Labor Inc
PDF File 2532697.pdf 418 kB Shaun Ewing Dec 05, 1950 00:00
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US-2532697-A // Voltage supply apparatus // Corbin Joseph E. ; Newhouse Russell C. // Bell Telephone Labor Inc
PDF File 2421026.pdf 418 kB Shaun Ewing May 27, 1947 00:00
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US-2421026-A // Delay device // Hall John A. ; Mason Warren P. // Bell Telephone Labor Inc
PDF File 2396691.pdf 418 kB Shaun Ewing Mar 19, 1946 00:00
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US-2396691-A // Condenser transmitter-amplifier system // Galbreath Robert R. // Bell Telephone Labor Inc
PDF File 2406364.pdf 416 kB Shaun Ewing Aug 27, 1946 00:00
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US-2406364-A // Oscillation generator // Friis Harald T. ; Rideout Vincent C. // Bell Telephone Labor Inc
PDF File 2476441.pdf 416 kB Shaun Ewing Jul 19, 1949 00:00
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US-2476441-A // Bearing sweep amplifier circuit // Doherty William H. // Bell Telephone Labor Inc
PDF File 2518327.pdf 415 kB Shaun Ewing Aug 08, 1950 00:00
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US-2518327-A // Method and means for detecting leaks in lead sheath telephone cables // Jahn Alfred P. // Bell Telephone Labor Inc
PDF File 2433383.pdf 414 kB Shaun Ewing Dec 30, 1947 00:00
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US-2433383-A // Crystal microphone // Mason Warren P. ; Mcskimin Herbert J. // Bell Telephone Labor Inc
PDF File 2530812.pdf 414 kB Shaun Ewing Nov 21, 1950 00:00
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US-2530812-A // Supporting detail for flexible conductors // Jr. Bertram H. Carmer, ; Dutra Frank A. // Bell Telephone Labor Inc ; Western Electric Co
PDF File 2414443.pdf 414 kB Shaun Ewing Jan 21, 1947 00:00
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US-2414443-A // Time measuring device // Busch Aloysius J. ; Dehn Joseph W. ; Whitney Wiley // Bell Telephone Labor Inc
PDF File 2435587.pdf 414 kB Shaun Ewing Feb 10, 1948 00:00
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US-2435587-A // Compressional wave signaling device // Harry William R. // Bell Telephone Labor Inc
PDF File 2476842.pdf 413 kB Shaun Ewing Jul 19, 1949 00:00
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US-2476842-A // Contact protective network // Curtis Austen M. // Bell Telephone Labor Inc
PDF File 2466112.pdf 412 kB Shaun Ewing Apr 05, 1949 00:00
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US-2466112-A // Compressional wave translating device // Keller Arthur C. // Bell Telephone Labor Inc
PDF File 2434648.pdf 411 kB Shaun Ewing Jan 20, 1948 00:00
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US-2434648-A // Compressional wave translating device // Jr. Walter D. Goodale, ; Pope Thomas J. // Bell Telephone Labor Inc
PDF File 2511622.pdf 411 kB Shaun Ewing Jun 13, 1950 00:00
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US-2511622-A // Telephone substation apparatus // Curran Stanley T. ; Thayer Walter J. // Bell Telephone Labor Inc
PDF File 2441808.pdf 410 kB Shaun Ewing May 18, 1948 00:00
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US-2441808-A // Remote control mechanism // Fry Eugene M. // Bell Telephone Labor Inc
PDF File 2405225.pdf 410 kB Shaun Ewing Aug 06, 1946 00:00
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US-2405225-A // Submarine signal system // Mason Warren P. // Bell Telephone Labor Inc
PDF File 2526579.pdf 409 kB Shaun Ewing Oct 17, 1950 00:00
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US-2526579-A // Variable reactor // Ring Douglas H. // Bell Telephone Labor Inc
PDF File 2432116.pdf 409 kB Shaun Ewing Dec 09, 1947 00:00
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US-2432116-A // Crystal detector mounting // Mclean David A. ; Theuerer Henry C. // Bell Telephone Labor Inc
PDF File 2418132.pdf 408 kB Shaun Ewing Apr 01, 1947 00:00
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US-2418132-A // Electromechanical signal translating device // Maxfield Joseph P. // Bell Telephone Labor Inc
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