Name Size Creator Creation Date Labels Comment  
PDF File 2595646.pdf 1.23 MB Shaun Ewing May 06, 1952 00:00
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US-2595646-A // Television test signal generator // Jr. Stephen Doba, ; Jansen Johannes J. // Bell Telephone Labor Inc
PDF File 2627039.pdf 1.23 MB Shaun Ewing Jan 27, 1953 00:00
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US-2627039-A // Gating circuits // Jr. Walter H. Macwilliams, // Bell Telephone Labor Inc
PDF File 2602853.pdf 1.23 MB Shaun Ewing Jul 08, 1952 00:00
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US-2602853-A // Selective signaling system // Harrison Henry C. // Bell Telephone Labor Inc
PDF File 2697136.pdf 1.23 MB Shaun Ewing Dec 14, 1954 00:00
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US-2697136-A // Microphone and microphone granules // Baker William O. ; Grisdale Richard O. // Bell Telephone Labor Inc
PDF File 2677101.pdf 1.23 MB Shaun Ewing Apr 27, 1954 00:00
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US-2677101-A // Transmission measuring means and method // Brune William L. // Bell Telephone Labor Inc
PDF File 2669635.pdf 1.22 MB Shaun Ewing Feb 16, 1954 00:00
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US-2669635-A // Semiconductive photoelectric transducer // Pfann William G. // Bell Telephone Labor Inc
PDF File 2544330.pdf 1.22 MB Shaun Ewing Mar 06, 1951 00:00
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US-2544330-A // Selective signaling device // Jr. Walter Koenig, // Bell Telephone Labor Inc
PDF File 2587014.pdf 1.22 MB Shaun Ewing Feb 26, 1952 00:00
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US-2587014-A // Charge and tax determining equipment for telephone systems // Vroom Edward // Bell Telephone Labor Inc
PDF File 2636944.pdf 1.22 MB Shaun Ewing Apr 28, 1953 00:00
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US-2636944-A // Recording-completing cord and trunk circuits // Buchanan Russell B. // Bell Telephone Labor Inc
PDF File 2601403.pdf 1.22 MB Shaun Ewing Jun 24, 1952 00:00
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US-2601403-A // Electric circuit // Lacy Lester Y. // Bell Telephone Labor Inc
PDF File 2724771.pdf 1.22 MB Shaun Ewing Nov 22, 1955 00:00
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US-2724771-A // Pulse generator utilizing bombardment induced conductivity // Mckay Kenneth G. // Bell Telephone Labor Inc
PDF File 2546316.pdf 1.22 MB Shaun Ewing Mar 27, 1951 00:00
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US-2546316-A // Synchronization of pulse communication systems // Peterson Eugene // Bell Telephone Labor Inc
PDF File 2614168.pdf 1.22 MB Shaun Ewing Oct 14, 1952 00:00
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US-2614168-A // Signal transmitter // Vroom Edward // Bell Telephone Labor Inc
PDF File 2546370.pdf 1.22 MB Shaun Ewing Mar 27, 1951 00:00
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US-2546370-A // Azimuth indicating circuit // Jr. Bernard Ostendorf, ; Rea Wilton T. // Bell Telephone Labor Inc
PDF File 2594409.pdf 1.22 MB Shaun Ewing Apr 29, 1952 00:00
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US-2594409-A // Directive antenna // Feldman Carl B. H. // Bell Telephone Labor Inc
PDF File 2682584.pdf 1.21 MB Shaun Ewing Jun 29, 1954 00:00
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US-2682584-A // Relay // Knapp Harry M. // Bell Telephone Labor Inc
PDF File 2634366.pdf 1.21 MB Shaun Ewing Apr 07, 1953 00:00
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US-2634366-A // Light repeater for pulse communication systems // Schimpf Luther G. // Bell Telephone Labor Inc
PDF File 2695334.pdf 1.21 MB Shaun Ewing Nov 23, 1954 00:00
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US-2695334-A // Dialing or signaling system // Dunlap Kermit S. // Bell Telephone Labor Inc
PDF File 2620448.pdf 1.20 MB Shaun Ewing Dec 02, 1952 00:00
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US-2620448-A // Transistor trigger circuits // Jr. Robert L. Wallace, // Bell Telephone Labor Inc
PDF File 2580083.pdf 1.20 MB Shaun Ewing Dec 25, 1951 00:00
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US-2580083-A // Contrast pattern generator // Jr. Stephen Doba, ; Rieke John W. // Bell Telephone Labor Inc
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