Name Size Creator Creation Date Labels Comment  
PDF File 2673936.pdf 977 kB Shaun Ewing Mar 30, 1954 00:00
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US-2673936-A // Diode gate // Harris James R. // Bell Telephone Labor Inc
PDF File 2673900.pdf 1.16 MB Shaun Ewing Mar 30, 1954 00:00
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US-2673900-A // High-frequency amplifying device // Mumford William W. // Bell Telephone Labor Inc
PDF File 2673891.pdf 1.66 MB Shaun Ewing Mar 30, 1954 00:00
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US-2673891-A // Control of transmission in two-way telephotograph systems // Jones Theodore A. // Bell Telephone Labor Inc
PDF File 2673721.pdf 370 kB Shaun Ewing Mar 30, 1954 00:00
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US-2673721-A // Apparatus for cooling electron discharge devices // Dickinson Frank R. // Bell Telephone Labor Inc
PDF File 2673482.pdf 594 kB Shaun Ewing Mar 30, 1954 00:00
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US-2673482-A // Vibrating reed device // Bostwick Lee G. // Bell Telephone Labor Inc
PDF File 2672604.pdf 2.60 MB Shaun Ewing Mar 16, 1954 00:00
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US-2672604-A // Telephone ringing power plant // Mills John K. ; Ross Walter S. // Bell Telephone Labor Inc
PDF File 2672590.pdf 607 kB Shaun Ewing Mar 16, 1954 00:00
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US-2672590-A // Delay line // Mcskimin Herbert J. // Bell Telephone Labor Inc
PDF File 2672528.pdf 646 kB Shaun Ewing Mar 16, 1954 00:00
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US-2672528-A // Semiconductor translating device // Shockley William // Bell Telephone Labor Inc
PDF File 2672523.pdf 2.53 MB Shaun Ewing Mar 16, 1954 00:00
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US-2672523-A // Telephone subscriber // Dunlap Kermit S. ; Malthaner William A. // Bell Telephone Labor Inc
PDF File 2672521.pdf 919 kB Shaun Ewing Mar 16, 1954 00:00
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US-2672521-A // Channel testing circuit // Holden William H. T. // Bell Telephone Labor Inc
PDF File 2672518.pdf 1.23 MB Shaun Ewing Mar 16, 1954 00:00
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US-2672518-A // Station identifier // Holden William H. T. ; Vibbard Edward L. // Bell Telephone Labor Inc
PDF File 2672515.pdf 6.16 MB Shaun Ewing Mar 16, 1954 00:00
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US-2672515-A // Calling station identification circuit // Barlow Dick S. // Bell Telephone Labor Inc
PDF File 2672512.pdf 2.67 MB Shaun Ewing Mar 16, 1954 00:00
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US-2672512-A // System for analyzing and synthesizing speech // Mathes Robert C. // Bell Telephone Labor Inc
PDF File 2672511.pdf 447 kB Shaun Ewing Mar 16, 1954 00:00
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US-2672511-A // Telegraph repeater // Davey James R. // 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 2672395.pdf 656 kB Shaun Ewing Mar 16, 1954 00:00
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US-2672395-A // Recording system // Lewis Benjamin F. // Bell Telephone Labor Inc
PDF File 2671824.pdf 1.20 MB Shaun Ewing Mar 09, 1954 00:00
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US-2671824-A // Electron beam register signaling system // Soffel Robert O. // Bell Telephone Labor Inc
PDF File 2671739.pdf 600 kB Shaun Ewing Mar 09, 1954 00:00
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US-2671739-A // Plating with sulfides, selenides, and tellurides of chromium, molybdenum, and tungsten // Lander James J. // Bell Telephone Labor Inc
PDF File 2671735.pdf 914 kB Shaun Ewing Mar 09, 1954 00:00
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US-2671735-A // Electrical resistors and methods of making them // Grisdale Richard O. ; Pfister Anthony C. ; Teal Gordon K. // 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
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