Name Size Creator Creation Date Labels Comment  
PDF File 2323961.pdf 362 kB Shaun Ewing Jul 13, 1943 00:00
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US-2323961-A // Relay armature // Zupa Frank A. // Bell Telephone Labor Inc
PDF File 2282465.pdf 362 kB Shaun Ewing May 12, 1942 00:00
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US-2282465-A // Speech transmission system // Edwards Paul G. // Bell Telephone Labor Inc
PDF File 2289091.pdf 361 kB Shaun Ewing Jul 07, 1942 00:00
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US-2289091-A // Thermionic tube amplifier // Bell Delamar T. // Bell Telephone Labor Inc
PDF File 2252899.pdf 361 kB Shaun Ewing Aug 19, 1941 00:00
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US-2252899-A // Method of manufacturing contact springs // Reynolds John N. // Bell Telephone Labor Inc
PDF File 2314518.pdf 361 kB Shaun Ewing Mar 23, 1943 00:00
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US-2314518-A // Telephone system // Jr. George Sandalls, // Bell Telephone Labor Inc
PDF File 2323235.pdf 360 kB Shaun Ewing Jun 29, 1943 00:00
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US-2323235-A // Electromagnetic counting device // Nordenswan Robert // Bell Telephone Labor Inc
PDF File 2267954.pdf 360 kB Shaun Ewing Dec 30, 1941 00:00
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US-2267954-A // Electrically conductive device // Schumacher Earle E. // Bell Telephone Labor Inc
PDF File 2295614.pdf 359 kB Shaun Ewing Sept 15, 1942 00:00
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US-2295614-A // Coin actuated device // Towne Charles C. // Bell Telephone Labor Inc
PDF File 2273993.pdf 359 kB Shaun Ewing Feb 24, 1942 00:00
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US-2273993-A // Gaseous discharge device circuit // Jr. George H. Rockwod, // Bell Telephone Labor Inc
PDF File 2287174.pdf 359 kB Shaun Ewing Jun 23, 1942 00:00
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US-2287174-A // Relative phase measuring circuit and method // Heising Raymond A. // Bell Telephone Labor Inc
PDF File 2382653.pdf 358 kB Shaun Ewing Aug 14, 1945 00:00
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US-2382653-A // Magnetic materials // Nesbitt Ethan A. // Bell Telephone Labor Inc
PDF File 2273447.pdf 357 kB Shaun Ewing Feb 17, 1942 00:00
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US-2273447-A // Unidirective energy radiating system // Ohl Russell S. // Bell Telephone Labor Inc
PDF File 2322273.pdf 356 kB Shaun Ewing Jun 22, 1943 00:00
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US-2322273-A // Process for manufacture of esters of mononitriles of dicarboxylic acids // Biggs Burnard S. // Bell Telephone Labor Inc
PDF File 2357591.pdf 356 kB Shaun Ewing Sept 05, 1944 00:00
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US-2357591-A // Joint for metal sheath cables // Kleinfelder Walter C. // Bell Telephone Labor Inc
PDF File 2319306.pdf 356 kB Shaun Ewing May 18, 1943 00:00
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US-2319306-A // Signaling system // Dickieson Alton C. // Bell Telephone Labor Inc
PDF File 2380982.pdf 355 kB Shaun Ewing Aug 07, 1945 00:00
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US-2380982-A // Electronic commutation of currents // Mitchell Doren // Bell Telephone Labor Inc
PDF File 2361680.pdf 355 kB Shaun Ewing Oct 31, 1944 00:00
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US-2361680-A // Method of reducing edge leakage in metal oxide-metal rectifiers // Ehrhardt Robert A. // Bell Telephone Labor Inc
PDF File 2303194.pdf 355 kB Shaun Ewing Nov 24, 1942 00:00
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US-2303194-A // Alloy // Bouton George M. ; Phipps George S. ; Schumacher Earle E. // Bell Telephone Labor Inc
PDF File 2322853.pdf 355 kB Shaun Ewing Jun 29, 1943 00:00
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US-2322853-A // Method of and apparatus for testing coils // Krebs Luther E. // Bell Telephone Labor Inc
PDF File 2381986.pdf 354 kB Shaun Ewing Aug 14, 1945 00:00
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US-2381986-A // Communication apparatus // Shann Oscar A. // Bell Telephone Labor Inc
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