Name Size Creator Creation Date Labels Comment  
PDF File 2369045.pdf 273 kB Shaun Ewing Feb 06, 1945 00:00
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US-2369045-A // Electric heating unit // Hampton Leon N. ; Shangle Amos H. // Bell Telephone Labor Inc
PDF File 2369030.pdf 389 kB Shaun Ewing Feb 06, 1945 00:00
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US-2369030-A // Amplifier circuit // Edwards Paul G. // Bell Telephone Labor Inc
PDF File 2368715.pdf 5.66 MB Shaun Ewing Feb 06, 1945 00:00
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US-2368715-A // Teletypewriter exchange system // Lucek Charles W. // Bell Telephone Labor Inc
PDF File 2368688.pdf 431 kB Shaun Ewing Feb 06, 1945 00:00
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US-2368688-A // Electrolytic device // Taylor Raymond L. // Bell Telephone Labor Inc
PDF File 2368666.pdf 9.59 MB Shaun Ewing Feb 06, 1945 00:00
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US-2368666-A // Teletypewriter exchange system // Krecek Joseph A. // Bell Telephone Labor Inc
PDF File 2368665.pdf 1.43 MB Shaun Ewing Feb 06, 1945 00:00
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US-2368665-A // Distillation method and apparatus // Kohman Girard T. ; Jr. Charles H. Prescott, // Bell Telephone Labor Inc
PDF File 2368197.pdf 411 kB Shaun Ewing Jan 30, 1945 00:00
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US-2368197-A // Relay operation // Brown John T. L. // Bell Telephone Labor Inc
PDF File 2368060.pdf 559 kB Shaun Ewing Jan 23, 1945 00:00
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US-2368060-A // Coating of electron discharge device parts // Wooten Leland A. // Bell Telephone Labor Inc
PDF File 2368056.pdf 2.51 MB Shaun Ewing Jan 23, 1945 00:00
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US-2368056-A // Signaling system // Walsh John G. // Bell Telephone Labor Inc
PDF File 2368031.pdf 1.18 MB Shaun Ewing Jan 23, 1945 00:00
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US-2368031-A // Electron discharge device // Llewellyn Frederick B. // Bell Telephone Labor Inc
PDF File 2367910.pdf 1.21 MB Shaun Ewing Jan 23, 1945 00:00
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US-2367910-A // Start-stop regenerative telegraph repeater // Watson Edward F. // Bell Telephone Labor Inc
PDF File 2367901.pdf 940 kB Shaun Ewing Jan 23, 1945 00:00
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US-2367901-A // Printing telegraph apparatus // Swezey Burdette S. // Bell Telephone Labor Inc
PDF File 2367885.pdf 1021 kB Shaun Ewing Jan 23, 1945 00:00
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US-2367885-A // Signaling system // Murphy Orlando J. ; Newby Neal D. // Bell Telephone Labor Inc
PDF File 2367792.pdf 2.33 MB Shaun Ewing Jan 23, 1945 00:00
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US-2367792-A // Signaling system // Pruden Harold M. // Bell Telephone Labor Inc
PDF File 2367769.pdf 1.28 MB Shaun Ewing Jan 23, 1945 00:00
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US-2367769-A // Telephone system // Goddard Myron C. // Bell Telephone Labor Inc
PDF File 2367728.pdf 772 kB Shaun Ewing Jan 23, 1945 00:00
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US-2367728-A // Balanced cathode ray sweep circuit // Jr. John J. Mahoney, // Bell Telephone Labor Inc
PDF File 2367711.pdf 949 kB Shaun Ewing Jan 23, 1945 00:00
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US-2367711-A // Broad band amplifier // Bode Hendrik W. // Bell Telephone Labor Inc
PDF File 2367522.pdf 855 kB Shaun Ewing Jan 16, 1945 00:00
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US-2367522-A // Signaling system // Pfleger Kenneth W. // Bell Telephone Labor Inc
PDF File 2367518.pdf 1.64 MB Shaun Ewing Jan 16, 1945 00:00
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US-2367518-A // Signaling system // Newby Neal D. // Bell Telephone Labor Inc
PDF File 2367509.pdf 296 kB Shaun Ewing Jan 16, 1945 00:00
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US-2367509-A // High or low voltage detector // Knowlton Clarence S. // Bell Telephone Labor Inc
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