Name Size Creator Creation Date Labels Comment  
PDF File 2466390.pdf 928 kB Shaun Ewing Apr 05, 1949 00:00
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US-2466390-A // Secret telegraph system // Dehn Joseph W. // Bell Telephone Labor Inc
PDF File 2516752.pdf 927 kB Shaun Ewing Jul 25, 1950 00:00
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US-2516752-A // Coding tube for pulse code modulation signals // Carbrey Robert L. // Bell Telephone Labor Inc
PDF File 2408108.pdf 925 kB Shaun Ewing Sept 24, 1946 00:00
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US-2408108-A // Television image production // Teal Gordon K. // Bell Telephone Labor Inc
PDF File 2467319.pdf 924 kB Shaun Ewing Apr 12, 1949 00:00
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US-2467319-A // Unitary range, azimuth, and elevation alignment indicator for radar systems // King Kenneth L. ; Wintringham William T. // Bell Telephone Labor Inc
PDF File 2402582.pdf 924 kB Shaun Ewing Jun 25, 1946 00:00
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US-2402582-A // Preparation of silicon materials // Scaff Jack H. // Bell Telephone Labor Inc
PDF File 2530957.pdf 920 kB Shaun Ewing Nov 21, 1950 00:00
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US-2530957-A // Time division system for modulated pulse transmission // Gilman George W. // Bell Telephone Labor Inc
PDF File 2483733.pdf 920 kB Shaun Ewing Oct 04, 1949 00:00
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US-2483733-A // Switch bank coating machine // Miller Victor F. // Bell Telephone Labor Inc
PDF File 2408809.pdf 919 kB Shaun Ewing Oct 08, 1946 00:00
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US-2408809-A // Cathode beam tube and velocity control electrode // Pierce John R. // Bell Telephone Labor Inc
PDF File 2424244.pdf 918 kB Shaun Ewing Jul 22, 1947 00:00
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US-2424244-A // Circuit for locking service observing teletypewriter during supervisory signal reception // Marshall Tola A. // Bell Telephone Labor Inc
PDF File 2517960.pdf 917 kB Shaun Ewing Aug 08, 1950 00:00
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US-2517960-A // Self-biased solid amplifier // Barney Harold L. ; Mathes Robert C. // Bell Telephone Labor Inc
PDF File 2444435.pdf 916 kB Shaun Ewing Jul 06, 1948 00:00
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US-2444435-A // Frequency control of magnetron oscillators // Fisk James B. // Bell Telephone Labor Inc
PDF File 2467325.pdf 916 kB Shaun Ewing Apr 12, 1949 00:00
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US-2467325-A // Electrooptical light valve of ammonium dihydrogen phosphate crystal // Mason Warren P. // Bell Telephone Labor Inc
PDF File 2406034.pdf 916 kB Shaun Ewing Aug 20, 1946 00:00
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US-2406034-A // Carrier wave signaling system // Phelps Walter A. // Bell Telephone Labor Inc
PDF File 2470838.pdf 913 kB Shaun Ewing May 24, 1949 00:00
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US-2470838-A // Power supply system // Stoller Hugh M. // Bell Telephone Labor Inc
PDF File 2414121.pdf 912 kB Shaun Ewing Jan 14, 1947 00:00
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US-2414121-A // Electron device of the magnetron type // Pierce John R. // Bell Telephone Labor Inc
PDF File 2481458.pdf 911 kB Shaun Ewing Sept 06, 1949 00:00
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US-2481458-A // Cathode-ray device // Wertz Hugh S. // Bell Telephone Labor Inc
PDF File 2506429.pdf 911 kB Shaun Ewing May 02, 1950 00:00
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US-2506429-A // Selective signaling system // Melick John M. // Bell Telephone Labor Inc
PDF File 2441153.pdf 911 kB Shaun Ewing May 11, 1948 00:00
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US-2441153-A // Cable laying machine // Kent Robert J. // Bell Telephone Labor Inc
PDF File 2509929.pdf 908 kB Shaun Ewing May 30, 1950 00:00
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US-2509929-A // Method of making cable joints // Kleinfelder Walter C. ; Sharpe Duncan T. // Bell Telephone Labor Inc
PDF File 2520007.pdf 908 kB Shaun Ewing Aug 22, 1950 00:00
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US-2520007-A // Testing circuit for carrier communication system with automatic reset timer // Hochgraf Lester // Bell Telephone Labor Inc
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