Name Size Creator Creation Date Labels Comment  
PDF File 2562382.pdf 581 kB Shaun Ewing Jul 31, 1951 00:00
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US-2562382-A // Electromagnetic switch // Harrison Henry C. // Bell Telephone Labor Inc
PDF File 2562281.pdf 1.60 MB Shaun Ewing Jul 31, 1951 00:00
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US-2562281-A // Directive pickup for transmission lines // Mumford William W. // Bell Telephone Labor Inc
PDF File 2562277.pdf 935 kB Shaun Ewing Jul 31, 1951 00:00
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US-2562277-A // Metallic lens directive antenna system // Kock Winston E. // Bell Telephone Labor Inc
PDF File 2562120.pdf 1.02 MB Shaun Ewing Jul 24, 1951 00:00
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US-2562120-A // Magnetic field strength meter // Pearson Gerald L. // Bell Telephone Labor Inc
PDF File 2562109.pdf 1.27 MB Shaun Ewing Jul 24, 1951 00:00
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US-2562109-A // Signal wave analyzer for deriving pitch information // Mathes Robert C. // Bell Telephone Labor Inc
PDF File 2562100.pdf 917 kB Shaun Ewing Jul 24, 1951 00:00
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US-2562100-A // Coordinate selecting and lock-out circuit // Holden William H. T. // Bell Telephone Labor Inc
PDF File 2562091.pdf 702 kB Shaun Ewing Jul 24, 1951 00:00
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US-2562091-A // Relay // Harrison Henry C. // Bell Telephone Labor Inc
PDF File 2561747.pdf 371 kB Shaun Ewing Jul 24, 1951 00:00
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US-2561747-A // Volume limiting amplifier // Jr. Josiah L. Merrill, ; Reier George C. // Bell Telephone Labor Inc
PDF File 2561732.pdf 642 kB Shaun Ewing Jul 24, 1951 00:00
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US-2561732-A // Low elastic coefficient bodies, devices embodying them and methods of producing them // Fine Morris E. // Bell Telephone Labor Inc
PDF File 2561730.pdf 637 kB Shaun Ewing Jul 24, 1951 00:00
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US-2561730-A // Electrical impulse counting system // Farkas Thomas P. // Bell Telephone Labor Inc
PDF File 2561722.pdf 1.94 MB Shaun Ewing Jul 24, 1951 00:00
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US-2561722-A // Signaling system // Bascom Henry M. ; Massonneau Robert F. ; Jr. Bernard Ostendorf, ; Rea Wilton T. // Bell Telephone Labor Inc
PDF File 2561478.pdf 868 kB Shaun Ewing Jul 24, 1951 00:00
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US-2561478-A // Analyzing system for determining the fundamental frequency of a complex wave // Mitchell Doren // Bell Telephone Labor Inc
PDF File 2561476.pdf 262 kB Shaun Ewing Jul 24, 1951 00:00
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US-2561476-A // Magnetic recorder // Lang Wilmarth Y. // Bell Telephone Labor Inc
PDF File 2561462.pdf 2.56 MB Shaun Ewing Jul 24, 1951 00:00
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US-2561462-A // Electromagnetic core and manufacture thereof // Compton Kenneth G. ; Gould Harold L. B. // Bell Telephone Labor Inc
PDF File 2561411.pdf 473 kB Shaun Ewing Jul 24, 1951 00:00
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US-2561411-A // Semiconductor signal translating device // Pfann William G. // Bell Telephone Labor Inc
PDF File 2561212.pdf 1.11 MB Shaun Ewing Jul 17, 1951 00:00
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US-2561212-A // Microwave hybrid branching systems // Lewis Willard D. // Bell Telephone Labor Inc
PDF File 2560818.pdf 471 kB Shaun Ewing Jul 17, 1951 00:00
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US-2560818-A // Visible indicator for radio object locators // Pierce John R. // Bell Telephone Labor Inc
PDF File 2560815.pdf 536 kB Shaun Ewing Jul 17, 1951 00:00
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US-2560815-A // Television receiver blanking circuit // Oliver Bernard M. // Bell Telephone Labor Inc
PDF File 2560806.pdf 834 kB Shaun Ewing Jul 17, 1951 00:00
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US-2560806-A // Echo suppression in transmission lines // Lewis Willard D. // Bell Telephone Labor Inc
PDF File 2560792.pdf 795 kB Shaun Ewing Jul 17, 1951 00:00
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US-2560792-A // Electrolytic surface treatment of germanium // Gibney Robert B. // Bell Telephone Labor Inc
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