Name Size Creator Creation Date Labels Comment  
PDF File 2505066.pdf 271 kB Shaun Ewing Apr 25, 1950 00:00
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US-2505066-A // Method of making assemblies of resistor bodies // Rulison Raymond L. // Bell Telephone Labor Inc
PDF File 2505061.pdf 293 kB Shaun Ewing Apr 25, 1950 00:00
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US-2505061-A // Phase inverter circuit // Oliver Bernard M. // Bell Telephone Labor Inc
PDF File 2505040.pdf 725 kB Shaun Ewing Apr 25, 1950 00:00
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US-2505040-A // Regenerative relay repeater // Goodall William M. // Bell Telephone Labor Inc
PDF File 2504963.pdf 545 kB Shaun Ewing Apr 25, 1950 00:00
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US-2504963-A // Cold cathode gas tube trigger pulse circuit // Craft Clifford J. // Bell Telephone Labor Inc
PDF File 2504778.pdf 1.10 MB Shaun Ewing Apr 18, 1950 00:00
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US-2504778-A // Magnetic compensation system // Young Clarence H. // Bell Telephone Labor Inc
PDF File 2504692.pdf 1.43 MB Shaun Ewing Apr 18, 1950 00:00
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US-2504692-A // Repeatered electrical transmission system, including auxiliary cable system // Jacobs Oliver B. // Bell Telephone Labor Inc
PDF File 2504621.pdf 3.22 MB Shaun Ewing Apr 18, 1950 00:00
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US-2504621-A // Enciphering and deciphering device for secret telegraph systems // Bacon Walter M. // Bell Telephone Labor Inc
PDF File 2504613.pdf 1.27 MB Shaun Ewing Apr 18, 1950 00:00
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US-2504613-A // Motor control system // Albert Walter P. // Bell Telephone Labor Inc
PDF File 2504354.pdf 812 kB Shaun Ewing Apr 18, 1950 00:00
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US-2504354-A // Phase controlled multivibrator // Roschke Erwin M. // Bell Telephone Labor Inc
PDF File 2504340.pdf 449 kB Shaun Ewing Apr 18, 1950 00:00
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US-2504340-A // Speed regulator for electric motors // Marrison Warren A. // Bell Telephone Labor Inc
PDF File 2504329.pdf 467 kB Shaun Ewing Apr 18, 1950 00:00
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US-2504329-A // Oscillation damping device // Heising Raymond A. // Bell Telephone Labor Inc
PDF File 2504307.pdf 551 kB Shaun Ewing Apr 18, 1950 00:00
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US-2504307-A // Hand telephone // Dalton John Francis // 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 2503837.pdf 502 kB Shaun Ewing Apr 11, 1950 00:00
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US-2503837-A // Electrical translating device // Ohl Russell S. // Bell Telephone Labor Inc
PDF File 2503831.pdf 508 kB Shaun Ewing Apr 11, 1950 00:00
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US-2503831-A // Fine wire delay line // Mason Warren P. // Bell Telephone Labor Inc
PDF File 2503571.pdf 1.08 MB Shaun Ewing Apr 11, 1950 00:00
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US-2503571-A // Apparatus for coating surfaces by thermal vaporization at atmospheric pressure // Wehe Herman G. // Bell Telephone Labor Inc
PDF File 2503564.pdf 303 kB Shaun Ewing Apr 11, 1950 00:00
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US-2503564-A // Soldering composition // Reeve Howard T. // Bell Telephone Labor Inc
PDF File 2503559.pdf 481 kB Shaun Ewing Apr 11, 1950 00:00
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US-2503559-A // Electrical terminal // Miloche Herman A. // Bell Telephone Labor Inc
PDF File 2503558.pdf 659 kB Shaun Ewing Apr 11, 1950 00:00
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US-2503558-A // Switch cleaning tool // Mesch Orwar S. A. // Bell Telephone Labor Inc
PDF File 2503429.pdf 804 kB Shaun Ewing Apr 11, 1950 00:00
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US-2503429-A // Metallic casing for electrical units // Ziegler Arthur W. // Bell Telephone Labor Inc
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