Name Size Creator Creation Date Labels Comment  
PDF File 2196680.pdf 823 kB Shaun Ewing Apr 09, 1940 00:00
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US-2196680-A // Regulated rectifier circuit // Milarta Louis E. // Bell Telephone Labor Inc
PDF File 2196278.pdf 432 kB Shaun Ewing Apr 09, 1940 00:00
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US-2196278-A // Electron discharge apparatus // Teal Gordon K. // Bell Telephone Labor Inc
PDF File 2196250.pdf 1.06 MB Shaun Ewing Apr 09, 1940 00:00
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US-2196250-A // Telephone system // Collis Raymond E. ; Hersey Ralph E. ; Newsom James B. // Bell Telephone Labor Inc
PDF File 2196173.pdf 738 kB Shaun Ewing Apr 09, 1940 00:00
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US-2196173-A // Communication system // Black Harold S. // Bell Telephone Labor Inc
PDF File 2196049.pdf 494 kB Shaun Ewing Apr 02, 1940 00:00
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US-2196049-A // Latch apparatus // Andres Robert R. // Bell Telephone Labor Inc
PDF File 2196040.pdf 452 kB Shaun Ewing Apr 02, 1940 00:00
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US-2196040-A // Electric discharge device // Thompson Albert C. // Bell Telephone Labor Inc
PDF File 2195864.pdf 1.02 MB Shaun Ewing Apr 02, 1940 00:00
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US-2195864-A // Electro-optical image producing system // Knoop William A. // Bell Telephone Labor Inc
PDF File 2195859.pdf 857 kB Shaun Ewing Apr 02, 1940 00:00
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US-2195859-A // Reeling system and method // Gent Edgar W. // Bell Telephone Labor Inc
PDF File 2195569.pdf 370 kB Shaun Ewing Apr 02, 1940 00:00
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US-2195569-A // Wire anchoring device // Hill Walter J. // Bell Telephone Labor Inc
PDF File 2195486.pdf 1017 kB Shaun Ewing Apr 02, 1940 00:00
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US-2195486-A // Electro-optical system // Gray Frank // Bell Telephone Labor Inc
PDF File 2195439.pdf 349 kB Shaun Ewing Apr 02, 1940 00:00
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US-2195439-A // Testing feedback amplifiers // Wilson Ira G. // Bell Telephone Labor Inc
PDF File 2195417.pdf 928 kB Shaun Ewing Apr 02, 1940 00:00
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US-2195417-A // Vibrating piezoelectric relay // Mason Warren P. // Bell Telephone Labor Inc
PDF File 2195317.pdf 922 kB Shaun Ewing Mar 26, 1940 00:00
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US-2195317-A // Telephone system // Martin William H. // Bell Telephone Labor Inc
PDF File 2195309.pdf 1.02 MB Shaun Ewing Mar 26, 1940 00:00
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US-2195309-A // Telephone system // Holden William H. T. // Bell Telephone Labor Inc
PDF File 2195098.pdf 1.01 MB Shaun Ewing Mar 26, 1940 00:00
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US-2195098-A // Electron discharge device // Skellett Albert M. // Bell Telephone Labor Inc
PDF File 2195081.pdf 2.28 MB Shaun Ewing Mar 26, 1940 00:00
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US-2195081-A // Sound printing mechanism // Dudley Homer W. // Bell Telephone Labor Inc
PDF File 2194933.pdf 507 kB Shaun Ewing Mar 26, 1940 00:00
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US-2194933-A // Switchboard cord reel // Fullerton William O. // Bell Telephone Labor Inc
PDF File 2194918.pdf 867 kB Shaun Ewing Mar 26, 1940 00:00
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US-2194918-A // Telegraph system // Thorp Vaughn P. // Bell Telephone Labor Inc
PDF File 2194705.pdf 726 kB Shaun Ewing Mar 26, 1940 00:00
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US-2194705-A // Testing equipment // Lang Wilmarth Y. // Bell Telephone Labor Inc
PDF File 2194703.pdf 369 kB Shaun Ewing Mar 26, 1940 00:00
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US-2194703-A // Sealing of condensers and similar apparatus // Kater Joseph A. // Bell Telephone Labor Inc
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