Name Size Creator Creation Date Labels Comment  
PDF File 2686838.pdf 1.77 MB Shaun Ewing Aug 17, 1954 00:00
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US-2686838-A // Translator // Dehn Joseph W. // Bell Telephone Labor Inc
PDF File 2543039.pdf 1.77 MB Shaun Ewing Feb 27, 1951 00:00
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US-2543039-A // Bombardment induced conductivity in solid insulators // Mckay Kenneth G. // Bell Telephone Labor Inc
PDF File 2715658.pdf 1.77 MB Shaun Ewing Aug 16, 1955 00:00
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US-2715658-A // Electrical information system // Dunlap Kermit S. ; Lovell Clarence A. // Bell Telephone Labor Inc
PDF File 2636116.pdf 1.77 MB Shaun Ewing Apr 21, 1953 00:00
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US-2636116-A // Microwave circuit stabilization means // Taylor Edmund R. // Bell Telephone Labor Inc
PDF File 2586597.pdf 1.77 MB Shaun Ewing Feb 19, 1952 00:00
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US-2586597-A // Oscillation generator // Bardeen John ; Brattain Walter H. // Bell Telephone Labor Inc
PDF File 2579729.pdf 1.76 MB Shaun Ewing Dec 25, 1951 00:00
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US-2579729-A // Automatic telephone message accounting system // Dehn Joseph W. ; Vroom Edward // Bell Telephone Labor Inc
PDF File 2543116.pdf 1.76 MB Shaun Ewing Feb 27, 1951 00:00
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US-2543116-A // Means and method for the secret transmission of message intelligence // Llewellyn Frederick B. // Bell Telephone Labor Inc
PDF File 2701340.pdf 1.75 MB Shaun Ewing Feb 01, 1955 00:00
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US-2701340-A // High-frequency directional coupler // Miller Stewart E. // Bell Telephone Labor Inc
PDF File 2619546.pdf 1.74 MB Shaun Ewing Nov 25, 1952 00:00
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US-2619546-A // Party line identification system // Myers Oscar // Bell Telephone Labor Inc
PDF File 2724746.pdf 1.74 MB Shaun Ewing Nov 22, 1955 00:00
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US-2724746-A // Communication system // Bruce Edmond ; Reenstra Willard A. // Bell Telephone Labor Inc
PDF File 2672508.pdf 1.74 MB Shaun Ewing Mar 16, 1954 00:00
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US-2672508-A // Teletypewriter line feed transmitting and counting apparatus // Lang Wilmarth Y. // Bell Telephone Labor Inc
PDF File 2642493.pdf 1.73 MB Shaun Ewing Jun 16, 1953 00:00
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US-2642493-A // Automatic message accounting system // Locke George A. ; Weaver Allan // Bell Telephone Labor Inc
PDF File 2556964.pdf 1.73 MB Shaun Ewing Jun 12, 1951 00:00
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US-2556964-A // Ground trainer for aircraft personnel // Giroud Henry A. // Bell Telephone Labor Inc
PDF File 2683189.pdf 1.73 MB Shaun Ewing Jul 06, 1954 00:00
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US-2683189-A // Frequency-shift carrier telegraph system // Hysko John L. ; Jr. Bernard Ostendorf, ; Rea Wilton T. ; Watson Edward F. // Bell Telephone Labor Inc
PDF File 2589662.pdf 1.72 MB Shaun Ewing Mar 18, 1952 00:00
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US-2589662-A // Radiotelephone receiving system // Bjornson Bjorn G. // Bell Telephone Labor Inc
PDF File 2575909.pdf 1.72 MB Shaun Ewing Nov 20, 1951 00:00
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US-2575909-A // Voice-operated system // Davis Kingsbury H. ; Potter Ralph K. // Bell Telephone Labor Inc
PDF File 2623102.pdf 1.71 MB Shaun Ewing Dec 23, 1952 00:00
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US-2623102-A // Circuit element utilizing semiconductive materials // Shockley William // Bell Telephone Labor Inc
PDF File 2681993.pdf 1.69 MB Shaun Ewing Jun 22, 1954 00:00
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US-2681993-A // Circuit element utilizing semiconductive materials // Shockley William // Bell Telephone Labor Inc
PDF File 2620402.pdf 1.69 MB Shaun Ewing Dec 02, 1952 00:00
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US-2620402-A // Telephone substation circuit with automatic compensation for length of line // Botsford Nelson ; Jr. Albert P. Boysen, ; Aikens Andrew J. ; Jr. Walter D. Goodale, ; Inglis Alfred H. // Bell Telephone Labor Inc
PDF File 2696572.pdf 1.67 MB Shaun Ewing Dec 07, 1954 00:00
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US-2696572-A // Pulse generating circuit // Schmid Erwin R. // Bell Telephone Labor Inc
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