Name Size Creator Creation Date Labels Comment  
PDF File 2790170.pdf 1000 kB Shaun Ewing Apr 23, 1957 00:00
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US-2790170-A // Indicating system // Tinus William C. // Bell Telephone Labor Inc
PDF File 2790645.pdf 681 kB Shaun Ewing Apr 30, 1957 00:00
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US-2790645-A // Magnetic recording system // Buhrendorf Frederick G. // Bell Telephone Labor Inc
PDF File 2790849.pdf 980 kB Shaun Ewing Apr 30, 1957 00:00
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US-2790849-A // Motor control for motor-driven telephone designation transmitters // Lovell Clarence A. ; Newby Neal D. // Bell Telephone Labor Inc
PDF File 2790850.pdf 432 kB Shaun Ewing Apr 30, 1957 00:00
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US-2790850-A // Total calls registration arrangement for telephone systems // Roberts Stanley // Bell Telephone Labor Inc
PDF File 2790926.pdf 627 kB Shaun Ewing Apr 30, 1957 00:00
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US-2790926-A // Traveling wave tube // Morton Jack A. // Bell Telephone Labor Inc
PDF File 2790927.pdf 691 kB Shaun Ewing Apr 30, 1957 00:00
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US-2790927-A // Traveling wave slicer tube // Pierce John R. // Bell Telephone Labor Inc
PDF File 2790928.pdf 886 kB Shaun Ewing Apr 30, 1957 00:00
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US-2790928-A // Electron discharge devices of the klystron type // Reed Eugene D. // Bell Telephone Labor Inc
PDF File 2790940.pdf 990 kB Shaun Ewing Apr 30, 1957 00:00
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US-2790940-A // Silicon rectifier and method of manufacture // Prince Morton B. // Bell Telephone Labor Inc
PDF File 2790952.pdf 635 kB Shaun Ewing Apr 30, 1957 00:00
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US-2790952-A // Method of optically testing semiconductor junctions // Pietenpol William J. // Bell Telephone Labor Inc
PDF File 2790956.pdf 868 kB Shaun Ewing Apr 30, 1957 00:00
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US-2790956-A // Distortion corrector // Ketchledge Raymond W. // Bell Telephone Labor Inc
PDF File 2790965.pdf 812 kB Shaun Ewing Apr 30, 1957 00:00
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US-2790965-A // Voice frequency alarm and remote control system // Schenck Alfred K. // Bell Telephone Labor Inc
PDF File 2791718.pdf 669 kB Shaun Ewing May 07, 1957 00:00
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US-2791718-A // Magnetic structure for traveling wave tubes // Glass Myron S. // Bell Telephone Labor Inc
PDF File 2791758.pdf 683 kB Shaun Ewing May 07, 1957 00:00
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US-2791758-A // Semiconductive translating device // Looney Duncan H. // Bell Telephone Labor Inc
PDF File 2791759.pdf 583 kB Shaun Ewing May 07, 1957 00:00
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US-2791759-A // Semiconductive device // Brown Walter L. // Bell Telephone Labor Inc
PDF File 2791760.pdf 637 kB Shaun Ewing May 07, 1957 00:00
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US-2791760-A // Semiconductive translating device // Ross Ian M. // Bell Telephone Labor Inc
PDF File 2791761.pdf 861 kB Shaun Ewing May 07, 1957 00:00
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US-2791761-A // Electrical switching and storage // Morton Jack A. // Bell Telephone Labor Inc
PDF File 2792441.pdf 484 kB Shaun Ewing May 14, 1957 00:00
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US-2792441-A // Sealing electrical apparatus // Platow Raymond C. // Bell Telephone Labor Inc
PDF File 2792518.pdf 1.12 MB Shaun Ewing May 14, 1957 00:00
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US-2792518-A // Low noise velocity modulation tube // Quate Calvin F. // Bell Telephone Labor Inc
PDF File 2792519.pdf 333 kB Shaun Ewing May 14, 1957 00:00
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US-2792519-A // Ribbon helix traveling wave tube // Pierce John R. // Bell Telephone Labor Inc
PDF File 2792538.pdf 916 kB Shaun Ewing May 14, 1957 00:00
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US-2792538-A // Semiconductor translating devices with embedded electrode // Pfann William G. // Bell Telephone Labor Inc
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