Name Size Creator Creation Date Labels Comment  
PDF File 2798113.pdf 669 kB Shaun Ewing Jul 02, 1957 00:00
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US-2798113-A // Shield connectors // Koller Fredrick W. ; Tomer Howard G. // Bell Telephone Labor Inc ; Thomas & Betts Corp
PDF File 2798167.pdf 776 kB Shaun Ewing Jul 02, 1957 00:00
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US-2798167-A // Current supply apparatus // Mills John K. // Bell Telephone Labor Inc
PDF File 2798203.pdf 390 kB Shaun Ewing Jul 02, 1957 00:00
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US-2798203-A // Modulated electron discharge device // Robertson George H. // Bell Telephone Labor Inc
PDF File 2798205.pdf 1.35 MB Shaun Ewing Jul 02, 1957 00:00
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US-2798205-A // Magnetically controllable transmission system // Hogan Clarence L. // Bell Telephone Labor Inc
PDF File 2798905.pdf 631 kB Shaun Ewing Jul 09, 1957 00:00
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US-2798905-A // Wide band amplifier using positive feedback // Graham Robert E. // Bell Telephone Laboraturies In
PDF File 2798944.pdf 2.09 MB Shaun Ewing Jul 09, 1957 00:00
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US-2798944-A // Signal seeking self adjusting radio receiving system // Lund Nean K. // Bell Telephone Labor Inc
PDF File 2799006.pdf 713 kB Shaun Ewing Jul 09, 1957 00:00
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US-2799006-A // Multiplexing various modes in composite conductors // Edson James O. // Bell Telephone Labor Inc
PDF File 2799729.pdf 944 kB Shaun Ewing Jul 16, 1957 00:00
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US-2799729-A // Multifrequency high speed calling signal generator // Lovell Clarence A. // Bell Telephone Labor Inc
PDF File 2799730.pdf 1.10 MB Shaun Ewing Jul 16, 1957 00:00
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US-2799730-A // High speed polytonic calling signal generator employing kick coil // Lovell Clarence A. ; Murphy Orlando J. // Bell Telephone Labor Inc
PDF File 2800535.pdf 687 kB Shaun Ewing Jul 23, 1957 00:00
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US-2800535-A // Contact springs // Jr. Robert L. Peck, // Bell Telephone Labor Inc
PDF File 2801050.pdf 1.34 MB Shaun Ewing Jul 30, 1957 00:00
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US-2801050-A // Pulse system producing nulls in electrical networks // Murphy Orlando J. // Bell Telephone Labor Inc
PDF File 2801281.pdf 2.49 MB Shaun Ewing Jul 30, 1957 00:00
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US-2801281-A // Communication system employing pulse code modulation // Oliver Bernard M. ; Shannon Claude E. // Bell Telephone Labor Inc
PDF File 2801284.pdf 1.30 MB Shaun Ewing Jul 30, 1957 00:00
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US-2801284-A // Communication circuit employing gas tubes // Ruble George B. // Bell Telephone Labor Inc
PDF File 2801287.pdf 677 kB Shaun Ewing Jul 30, 1957 00:00
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US-2801287-A // Control of regular and distant talking subscribers sets // Clemency William F. // Bell Telephone Labor Inc
PDF File 2801288.pdf 681 kB Shaun Ewing Jul 30, 1957 00:00
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US-2801288-A // Equalizing circuit // Meacham Larned A. // Bell Telephone Labor Inc
PDF File 2801296.pdf 875 kB Shaun Ewing Jul 30, 1957 00:00
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US-2801296-A // D.-c. summing amplifier drift correction // Blecher Franklin H. // Bell Telephone Labor Inc
PDF File 2801337.pdf 1.29 MB Shaun Ewing Jul 30, 1957 00:00
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US-2801337-A // Crystal oscillator apparatus // Felch Edwin P. // Bell Telephone Labor Inc
PDF File 2801358.pdf 800 kB Shaun Ewing Jul 30, 1957 00:00
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US-2801358-A // Electron discharge devices // Robertson George H. // Bell Telephone Labor Inc
PDF File 2801359.pdf 557 kB Shaun Ewing Jul 30, 1957 00:00
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US-2801359-A // Traveling wave tube // Hollenberg Arthur V. // Bell Telephone Labor Inc
PDF File 2801360.pdf 512 kB Shaun Ewing Jul 30, 1957 00:00
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US-2801360-A // Traveling wave tube // Robertson George H. ; Walsh Edward J. // Bell Telephone Labor Inc
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