Name Size Creator Creation Date Labels Comment  
PDF File 2289156.pdf 562 kB Shaun Ewing Jul 07, 1942 00:00
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US-2289156-A // Electric discharge device // Weinhart Howard W. // 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 2289048.pdf 1.28 MB Shaun Ewing Jul 07, 1942 00:00
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US-2289048-A // Power line carrier frequency telephone system // Jr. George Sandalls, // Bell Telephone Labor Inc
PDF File 2288817.pdf 341 kB Shaun Ewing Jul 07, 1942 00:00
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US-2288817-A // Oscillation modulator // Maggio John B. // Bell Telephone Labor Inc
PDF File 2288811.pdf 756 kB Shaun Ewing Jul 07, 1942 00:00
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US-2288811-A // Switching device // Leveridge Walter J. // Bell Telephone Labor Inc
PDF File 2288695.pdf 896 kB Shaun Ewing Jul 07, 1942 00:00
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US-2288695-A // Electrical insulated conductor // Fulier Calvin S. // Bell Telephone Labor Inc
PDF File 2288694.pdf 617 kB Shaun Ewing Jul 07, 1942 00:00
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US-2288694-A // Method of and apparatus for extracting energy from a beam of velocity modulated electrons // Fry Thornton C. // Bell Telephone Labor Inc
PDF File 2288452.pdf 558 kB Shaun Ewing Jun 30, 1942 00:00
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US-2288452-A // Electric switch // Harrison Henry C. // Bell Telephone Labor Inc
PDF File 2288451.pdf 651 kB Shaun Ewing Jun 30, 1942 00:00
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US-2288451-A // Electric switch // Harrison Henry C. // Bell Telephone Labor Inc
PDF File 2288435.pdf 448 kB Shaun Ewing Jun 30, 1942 00:00
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US-2288435-A // Remote control apparatus // Browne Bennie O. // Bell Telephone Labor Inc
PDF File 2288275.pdf 824 kB Shaun Ewing Jun 30, 1942 00:00
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US-2288275-A // Modulating system // Ferrell Enoch B. // Bell Telephone Labor Inc
PDF File 2288256.pdf 1020 kB Shaun Ewing Jun 30, 1942 00:00
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US-2288256-A // Transmission through space discharge device // Shepherd William G. // Bell Telephone Labor Inc
PDF File 2288251.pdf 3.28 MB Shaun Ewing Jun 30, 1942 00:00
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US-2288251-A // Automatic toll switching telephone system // Murphy Paul B. // Bell Telephone Labor Inc
PDF File 2288049.pdf 888 kB Shaun Ewing Jun 30, 1942 00:00
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US-2288049-A // Telephone set circuit // Tillman Richard J. ; Zinn Manvel K. // Bell Telephone Labor Inc
PDF File 2288025.pdf 885 kB Shaun Ewing Jun 30, 1942 00:00
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US-2288025-A // Automatic frequency control system // Pomeroy Allen F. // Bell Telephone Labor Inc
PDF File 2287998.pdf 2.43 MB Shaun Ewing Jun 30, 1942 00:00
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US-2287998-A // Telephone circuit // Johnson Kenneth S. // Bell Telephone Labor Inc
PDF File 2287881.pdf 974 kB Shaun Ewing Jun 30, 1942 00:00
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US-2287881-A // Telephone system // Holden William H. T. // Bell Telephone Labor Inc
PDF File 2287587.pdf 1.18 MB Shaun Ewing Jun 23, 1942 00:00
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US-2287587-A // Light modulating apparatus // Willard Gerald W. // Bell Telephone Labor Inc
PDF File 2287421.pdf 511 kB Shaun Ewing Jun 23, 1942 00:00
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US-2287421-A // Stabilization of halogenated compounds // Egerton Lawson // Bell Telephone Labor Inc
PDF File 2287413.pdf 1.87 MB Shaun Ewing Jun 23, 1942 00:00
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US-2287413-A // Facsimile system // Bruce Edmond ; Herriott William // Bell Telephone Labor Inc
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