Name Size Creator Creation Date Labels Comment  
PDF File 2535667.pdf 884 kB Shaun Ewing Dec 26, 1950 00:00
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US-2535667-A // Torque controlling mechanism // Burger Michael J. ; Clement George F. // Bell Telephone Labor Inc
PDF File 2513277.pdf 882 kB Shaun Ewing Jul 04, 1950 00:00
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US-2513277-A // Electron discharge device, including a tunable cavity resonator // Best Fred H. // Bell Telephone Labor Inc
PDF File 2484618.pdf 879 kB Shaun Ewing Oct 11, 1949 00:00
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US-2484618-A // Wave receiving system // Fisher Harold J. // Bell Telephone Labor Inc
PDF File 2460484.pdf 879 kB Shaun Ewing Feb 01, 1949 00:00
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US-2460484-A // Electrode unit assembly // Best Fred H. ; Pierce John R. // Bell Telephone Labor Inc
PDF File 2450434.pdf 877 kB Shaun Ewing Oct 05, 1948 00:00
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US-2450434-A // Piezoelectric crystal apparatus // Mason Warren P. // Bell Telephone Labor Inc
PDF File 2504303.pdf 876 kB Shaun Ewing Apr 18, 1950 00:00
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US-2504303-A // Metal to glass sealing method // Clark James E. ; Ronci Victor L. // Bell Telephone Labor Inc
PDF File 2477232.pdf 876 kB Shaun Ewing Jul 26, 1949 00:00
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US-2477232-A // Cavity resonator // Branson David E. // Bell Telephone Labor Inc
PDF File 2507706.pdf 875 kB Shaun Ewing May 16, 1950 00:00
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US-2507706-A // Electronic discharge device // Gee Richard C. ; Gronros Warren // Bell Telephone Labor Inc
PDF File 2441603.pdf 873 kB Shaun Ewing May 18, 1948 00:00
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US-2441603-A // Electrical translating materials and method of making them // Storks Keith H. ; Teal Gordon K. // Bell Telephone Labor Inc
PDF File 2473456.pdf 873 kB Shaun Ewing Jun 14, 1949 00:00
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US-2473456-A // Passivation of ferrous metals // Thurber Elmer A. // Bell Telephone Labor Inc
PDF File 2417425.pdf 873 kB Shaun Ewing Mar 18, 1947 00:00
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US-2417425-A // Potentiometer circuit // Lovell Clarence A. ; Muller John F. // Bell Telephone Labor Inc
PDF File 2468299.pdf 872 kB Shaun Ewing Apr 26, 1949 00:00
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US-2468299-A // Supervisory signaling in telephone or like switching systems // Maloney Martin E. // Bell Telephone Labor Inc
PDF File 2419617.pdf 870 kB Shaun Ewing Apr 29, 1947 00:00
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US-2419617-A // Optical device for testing crystal sections // Willard Gerald W. // Bell Telephone Labor Inc
PDF File 2406348.pdf 868 kB Shaun Ewing Aug 27, 1946 00:00
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US-2406348-A // Secret telephony // Buhrendorf Frederick G. // Bell Telephone Labor Inc
PDF File 2424246.pdf 868 kB Shaun Ewing Jul 22, 1947 00:00
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US-2424246-A // Frequency-modulated crystal oscillator // Mason Warren P. // Bell Telephone Labor Inc
PDF File 2392367.pdf 867 kB Shaun Ewing Jan 08, 1946 00:00
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US-2392367-A // Electron discharge device // Depp Wallace A. // Bell Telephone Labor Inc
PDF File 2468154.pdf 866 kB Shaun Ewing Apr 26, 1949 00:00
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US-2468154-A // Permeability determination // Ashworth Joseph A. ; Chegwidden Raymond A. // Bell Telephone Labor Inc
PDF File 2403023.pdf 866 kB Shaun Ewing Jul 02, 1946 00:00
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US-2403023-A // Television follower apparatus // Reynolds Frederick W. // Bell Telephone Labor Inc
PDF File 2400148.pdf 862 kB Shaun Ewing May 14, 1946 00:00
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US-2400148-A // Telephone call transmitting device // Hubbard Francis A. // Bell Telephone Labor Inc
PDF File 2419946.pdf 861 kB Shaun Ewing May 06, 1947 00:00
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US-2419946-A // High-frequency direction finder // Edwards Charles F. ; Jansky Karl G. // Bell Telephone Labor Inc
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