Name Size Creator Creation Date Labels Comment  
PDF File 2506420.pdf 477 kB Shaun Ewing May 02, 1950 00:00
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US-2506420-A // Cobalt base alloys and resistance elements formed therefrom // Greiner Earl S. // Bell Telephone Labor Inc
PDF File 2405604.pdf 475 kB Shaun Ewing Aug 13, 1946 00:00
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US-2405604-A // Compressional wave translating device // Pope Thomas J. // Bell Telephone Labor Inc
PDF File 2528086.pdf 475 kB Shaun Ewing Oct 31, 1950 00:00
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US-2528086-A // Relay contacts of conducting rubber // Schenck Alfred K. // Bell Telephone Labor Inc
PDF File 2469829.pdf 474 kB Shaun Ewing May 10, 1949 00:00
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US-2469829-A // Method and system for measuring frequency // Kinzer John P. // Bell Telephone Labor Inc
PDF File 2493060.pdf 473 kB Shaun Ewing Jan 03, 1950 00:00
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US-2493060-A // Electrical control device // Daschke Arthur W. // Bell Telephone Labor Inc
PDF File 2419201.pdf 473 kB Shaun Ewing Apr 22, 1947 00:00
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US-2419201-A // Pulse generator // Crump Elmo E. ; Kersta Lawrence G. // Bell Telephone Labor Inc
PDF File 2413725.pdf 472 kB Shaun Ewing Jan 07, 1947 00:00
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US-2413725-A // Electron discharge device // Mcnally James O. // Bell Telephone Labor Inc
PDF File 2474898.pdf 472 kB Shaun Ewing Jul 05, 1949 00:00
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US-2474898-A // Electromagnetic resonator of the magnetron type // Heising Raymond A. // Bell Telephone Labor Inc
PDF File 2407260.pdf 472 kB Shaun Ewing Sept 10, 1946 00:00
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US-2407260-A // Privacy system // Dickieson Alton C. // Bell Telephone Labor Inc
PDF File 2416675.pdf 471 kB Shaun Ewing Mar 04, 1947 00:00
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US-2416675-A // Horn antenna system // Beck Alfred C. ; Friis Harald T. // Bell Telephone Labor Inc
PDF File 2410432.pdf 471 kB Shaun Ewing Nov 05, 1946 00:00
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US-2410432-A // Switching mechanism // Drake Percy B. // Bell Telephone Labor Inc
PDF File 2531194.pdf 471 kB Shaun Ewing Nov 21, 1950 00:00
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US-2531194-A // Rotatable vane type attenuator with plug in or out elements // Bowen Arnold E. // Bell Telephone Labor Inc
PDF File 2418136.pdf 470 kB Shaun Ewing Apr 01, 1947 00:00
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US-2418136-A // Acoustic range finder // Munson Wilden A. ; Steinberg John C. // Bell Telephone Labor Inc
PDF File 2418839.pdf 470 kB Shaun Ewing Apr 15, 1947 00:00
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US-2418839-A // Wide range tuner for cavity resonators // Julian Renne S. // Bell Telephone Labor Inc
PDF File 2460755.pdf 469 kB Shaun Ewing Feb 01, 1949 00:00
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US-2460755-A // Receiver protective circuit for pulse transmission systems // Jr. Battle H. Klyce, // Bell Telephone Labor Inc
PDF File 2534559.pdf 469 kB Shaun Ewing Dec 19, 1950 00:00
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US-2534559-A // Voltage regulation // Jr. Roy W. Prince, // Bell Telephone Labor Inc
PDF File 2519495.pdf 469 kB Shaun Ewing Aug 22, 1950 00:00
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US-2519495-A // Magnetostrictive core and method of making it // Nesbitt Ethan A. ; Williams Howell J. // Bell Telephone Labor Inc
PDF File 2405182.pdf 468 kB Shaun Ewing Aug 06, 1946 00:00
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US-2405182-A // Ultrasonic ranging device // Bollman John H. // Bell Telephone Labor Inc
PDF File 2480995.pdf 468 kB Shaun Ewing Sept 06, 1949 00:00
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US-2480995-A // Electrical potentiometer device // Armitage Le Roy // Bell Telephone Labor Inc
PDF File 2456284.pdf 468 kB Shaun Ewing Dec 14, 1948 00:00
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US-2456284-A // Flume for air laid wire // Jordan Homer G. // Bell Telephone Labor Inc
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