Name Size Creator Creation Date Labels Comment  
PDF File 2281035.pdf 1.24 MB Shaun Ewing Apr 28, 1942 00:00
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US-2281035-A // Repeatered transmission system // Green Estill I. // Bell Telephone Labor Inc
PDF File 2280983.pdf 302 kB Shaun Ewing Apr 28, 1942 00:00
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US-2280983-A // Wire supporting clip // Stover Herbert F. // Bell Telephone Labor Inc
PDF File 2280981.pdf 208 kB Shaun Ewing Apr 28, 1942 00:00
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US-2280981-A // Fabrication of laminated metal objects // Schuh Arthur E. // Bell Telephone Labor Inc
PDF File 2280980.pdf 370 kB Shaun Ewing Apr 28, 1942 00:00
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US-2280980-A // Electron discharge device // Samuel Arthur L. // Bell Telephone Labor Inc
PDF File 2280949.pdf 742 kB Shaun Ewing Apr 28, 1942 00:00
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US-2280949-A // Electric signaling // Hall Nathan I. // Bell Telephone Labor Inc
PDF File 2280939.pdf 862 kB Shaun Ewing Apr 28, 1942 00:00
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US-2280939-A // Luminescent screen // Weinhart Howard W. // Bell Telephone Labor Inc
PDF File 2280890.pdf 676 kB Shaun Ewing Apr 28, 1942 00:00
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US-2280890-A // Luminescent screen // Calbick Chester J. ; Johnson John B. // Bell Telephone Labor Inc
PDF File 2280871.pdf 1.53 MB Shaun Ewing Apr 28, 1942 00:00
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US-2280871-A // Control system // Tuthill Walter W. // Bell Telephone Labor Inc
PDF File 2280661.pdf 347 kB Shaun Ewing Apr 21, 1942 00:00
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US-2280661-A // Filtering circuits // O'Leary Joseph T. // Bell Telephone Labor Inc
PDF File 2280604.pdf 1.17 MB Shaun Ewing Apr 21, 1942 00:00
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US-2280604-A // Telephone call transmitter // Richard Charles D. // Bell Telephone Labor Inc
PDF File 2280528.pdf 1.00 MB Shaun Ewing Apr 21, 1942 00:00
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US-2280528-A // Electronic switching apparatus // King Archie P. // Bell Telephone Labor Inc
PDF File 2280438.pdf 555 kB Shaun Ewing Apr 21, 1942 00:00
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US-2280438-A // Circuit controlling device // Matthews Emil C. // Bell Telephone Labor Inc
PDF File 2280303.pdf 754 kB Shaun Ewing Apr 21, 1942 00:00
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US-2280303-A // Electron multiplier system // Reynolds Frederick W. // Bell Telephone Labor Inc
PDF File 2280293.pdf 1.03 MB Shaun Ewing Apr 21, 1942 00:00
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US-2280293-A // Repeater control // Jr. John G. Kreer, // Bell Telephone Labor Inc
PDF File 2280292.pdf 2.14 MB Shaun Ewing Apr 21, 1942 00:00
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US-2280292-A // Teletypewriter switching system // Kinkead Fullerton S. ; Kreeek Joseph A. // Bell Telephone Labor Inc
PDF File 2280257.pdf 346 kB Shaun Ewing Apr 21, 1942 00:00
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US-2280257-A // Resistor device and method of making the same // Pearson Gerald L. // 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 2280158.pdf 655 kB Shaun Ewing Apr 21, 1942 00:00
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US-2280158-A // Two-way signal transmission system // Mitehell Doren // Bell Telephone Labor Inc
PDF File 2279979.pdf 299 kB Shaun Ewing Apr 14, 1942 00:00
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US-2279979-A // Cutting tool // Gillich James J. // Bell Telephone Labor Inc
PDF File 2279978.pdf 712 kB Shaun Ewing Apr 14, 1942 00:00
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US-2279978-A // Signaling system // Gannett Danforth K. // Bell Telephone Labor Inc
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