Name Size Creator Creation Date Labels Comment  
PDF File 2391506.pdf 462 kB Shaun Ewing Dec 25, 1945 00:00
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US-2391506-A // Resistance device // Pearson Gerald L. // Bell Telephone Labor Inc
PDF File 2302374.pdf 462 kB Shaun Ewing Nov 17, 1942 00:00
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US-2302374-A // Two-way signal transmission system // Mitchell Doren // Bell Telephone Labor Inc
PDF File 2324034.pdf 462 kB Shaun Ewing Jul 13, 1943 00:00
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US-2324034-A // Air-cooled power amplifier // Skene Andrew A. // Bell Telephone Labor Inc
PDF File 2246919.pdf 461 kB Shaun Ewing Jun 24, 1941 00:00
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US-2246919-A // Latching device // Krantz Hubert K. // Bell Telephone Labor Inc
PDF File 2281717.pdf 461 kB Shaun Ewing May 05, 1942 00:00
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US-2281717-A // Electron discharge apparatus // Samuel Arthur L. // Bell Telephone Labor Inc
PDF File 2362898.pdf 460 kB Shaun Ewing Nov 14, 1944 00:00
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US-2362898-A // Signal transmission system // Gilman George W. // Bell Telephone Labor Inc
PDF File 2350003.pdf 459 kB Shaun Ewing May 30, 1944 00:00
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US-2350003-A // Electron discharge device // West John W. // Bell Telephone Labor Inc
PDF File 2310417.pdf 459 kB Shaun Ewing Feb 09, 1943 00:00
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US-2310417-A // Pneumatic ticket sending and receiving valve // Gent Edgar W. // Bell Telephone Labor Inc
PDF File 2378986.pdf 457 kB Shaun Ewing Jun 26, 1945 00:00
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US-2378986-A // Polarized relay // Jr. Emil Dickten, // Bell Telephone Labor Inc
PDF File 2298073.pdf 456 kB Shaun Ewing Oct 06, 1942 00:00
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US-2298073-A // Electric circuits // Stone John R. // Bell Telephone Labor Inc
PDF File 2299815.pdf 455 kB Shaun Ewing Oct 27, 1942 00:00
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US-2299815-A // Gas detector // Gent Edgar W. // Bell Telephone Labor Inc
PDF File 2369561.pdf 455 kB Shaun Ewing Feb 13, 1945 00:00
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US-2369561-A // Coating apparatus // Grisdale Richard O. // Bell Telephone Labor Inc
PDF File 2249854.pdf 455 kB Shaun Ewing Jul 22, 1941 00:00
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US-2249854-A // Signaling system // Rehm Theodore C. // Bell Telephone Labor Inc
PDF File 2280200.pdf 455 kB Shaun Ewing Apr 21, 1942 00:00
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US-2280200-A // Concentric conductor transmission line // Smith Phillip H. // Bell Telephone Labor Inc
PDF File 2391687.pdf 455 kB Shaun Ewing Dec 25, 1945 00:00
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US-2391687-A // Stabilization of electric condensers // Mclean David A. // Bell Telephone Labor Inc
PDF File 2275620.pdf 455 kB Shaun Ewing Mar 10, 1942 00:00
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US-2275620-A // Stabilization of superpolymers // Fuller Calvin S. // Bell Telephone Labor Inc
PDF File 2319087.pdf 454 kB Shaun Ewing May 11, 1943 00:00
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US-2319087-A // Electric organ keying system // Rienstra Albert R. // Bell Telephone Labor Inc
PDF File 2387719.pdf 453 kB Shaun Ewing Oct 30, 1945 00:00
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US-2387719-A // Key-equipped telephone set // Curran Stanley T. // Bell Telephone Labor Inc
PDF File 2309220.pdf 452 kB Shaun Ewing Jan 26, 1943 00:00
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US-2309220-A // Electron discharge device // Skellett Albert M. // Bell Telephone Labor Inc
PDF File 2320734.pdf 452 kB Shaun Ewing Jun 01, 1943 00:00
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US-2320734-A // Switching mechanism // Mead Edward D. ; Miller Victor F. // Bell Telephone Labor Inc
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