Name Size Creator Creation Date Labels Comment  
PDF File 2582959.pdf 4.79 MB Shaun Ewing Jan 22, 1952 00:00
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US-2582959-A // Electron-tube controlled switching system // Bruce Edmond ; Hall Nathan I. // Bell Telephone Labor Inc
PDF File 2630270.pdf 4.75 MB Shaun Ewing Mar 03, 1953 00:00
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US-2630270-A // Automatic accounting device // Jr. Amos E. Joel, ; Rippere Robert O. // Bell Telephone Labor Inc
PDF File 2614176.pdf 4.74 MB Shaun Ewing Oct 14, 1952 00:00
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US-2614176-A // Electronic induction number group translator // Dimond Thomas L. // Bell Telephone Labor Inc
PDF File 2680781.pdf 4.72 MB Shaun Ewing Jun 08, 1954 00:00
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US-2680781-A // Translating arrangement // Avery Robert C. // Bell Telephone Labor Inc
PDF File 2671611.pdf 4.60 MB Shaun Ewing Mar 09, 1954 00:00
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US-2671611-A // Control circuit for calculating machines // Vibbard Edward L. // Bell Telephone Labor Inc
PDF File 2720557.pdf 4.59 MB Shaun Ewing Oct 11, 1955 00:00
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US-2720557-A // Time division pulse code modulation system employing continuous coding tube // Goodall William M. // Bell Telephone Labor Inc
PDF File 2587817.pdf 4.57 MB Shaun Ewing Mar 04, 1952 00:00
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US-2587817-A // Telephone system // Busch Aloysius J. ; Michael Henry J. // Bell Telephone Labor Inc
PDF File 2714626.pdf 4.50 MB Shaun Ewing Aug 02, 1955 00:00
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US-2714626-A // Private line intercommunicating teletypewriter system // Locke George A. ; Melhuish Lawrence E. ; Jr. Bernard Ostendorf, // Bell Telephone Labor Inc
PDF File 2546835.pdf 4.46 MB Shaun Ewing Mar 27, 1951 00:00
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US-2546835-A // Code recording control circuit // Rippere Robert O. // Bell Telephone Labor Inc
PDF File 2538636.pdf 4.41 MB Shaun Ewing Jan 16, 1951 00:00
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US-2538636-A // Digital computer // Williams Samuel B. // Bell Telephone Labor Inc
PDF File 2686843.pdf 4.40 MB Shaun Ewing Aug 17, 1954 00:00
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US-2686843-A // Call distributing service desk // Jr. William L. Shafer, // Bell Telephone Labor Inc
PDF File 2710720.pdf 4.33 MB Shaun Ewing Jun 14, 1955 00:00
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US-2710720-A // Artillery computer // Blackman Ralph B. ; Bode Hendrik W. // Bell Telephone Labor Inc
PDF File 2577614.pdf 4.27 MB Shaun Ewing Dec 04, 1951 00:00
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US-2577614-A // Voice-frequency signaling system // Fritschi Walter W. ; Lucek Charles W. // Bell Telephone Labor Inc
PDF File 2635807.pdf 4.18 MB Shaun Ewing Apr 21, 1953 00:00
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US-2635807-A // Automatic accounting device // Flint Erlon W. // Bell Telephone Labor Inc
PDF File 2675426.pdf 4.16 MB Shaun Ewing Apr 13, 1954 00:00
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US-2675426-A // Electronic induction number group translator // Vroom Edward // Bell Telephone Labor Inc
PDF File 2610295.pdf 4.10 MB Shaun Ewing Sept 09, 1952 00:00
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US-2610295-A // Pulse code modulation communication system // Carbrey Robert L. // Bell Telephone Labor Inc
PDF File 2667537.pdf 4.01 MB Shaun Ewing Jan 26, 1954 00:00
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US-2667537-A // Telegraph repeater // Mahoney Joseph A. ; Rea Wilton T. ; Sutliff Carleton B. // Bell Telephone Labor Inc
PDF File 2658188.pdf 3.95 MB Shaun Ewing Nov 03, 1953 00:00
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US-2658188-A // Pulse position dialing system with direct time measuring apparatus // Malthaner William A. ; Newby Neal D. ; Vaughan Henry E. // Bell Telephone Labor Inc
PDF File 2588375.pdf 3.77 MB Shaun Ewing Mar 11, 1952 00:00
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US-2588375-A // Automatic accounting device // Flint Erlon W. ; Hague Alfred E. ; Jr. Amos E. Joel, ; Rippere Robert O. // Bell Telephone Labor Inc
PDF File 2633502.pdf 3.70 MB Shaun Ewing Mar 31, 1953 00:00
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US-2633502-A // Mechanical communication switchboard // Carpenter Warren W. ; Murphy Paul B. // Bell Telephone Labor Inc
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