Name Size Creator Creation Date Labels Comment  
PDF File 2423114.pdf 389 kB Shaun Ewing Jul 01, 1947 00:00
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US-2423114-A // Voltage regulated rectifier circuit // Potter James A. // Bell Telephone Labor Inc
PDF File 2423119.pdf 529 kB Shaun Ewing Jul 01, 1947 00:00
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US-2423119-A // Hydrophone selecting system // Retallack John B. // Bell Telephone Labor Inc
PDF File 2423124.pdf 563 kB Shaun Ewing Jul 01, 1947 00:00
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US-2423124-A // Electro-optical device // Teal Gordon K. // Bell Telephone Labor Inc
PDF File 2423125.pdf 640 kB Shaun Ewing Jul 01, 1947 00:00
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US-2423125-A // Photoelectromotive force cell of the silicon-silicon oxide type and method of making the same // Teal Gordon K. // Bell Telephone Labor Inc
PDF File 2423130.pdf 1004 kB Shaun Ewing Jul 01, 1947 00:00
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US-2423130-A // Switching device in wave guide transmission system // Tyrrell Warren A. // Bell Telephone Labor Inc
PDF File 2423437.pdf 834 kB Shaun Ewing Jul 08, 1947 00:00
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US-2423437-A // Direction finder // Budenbom Horace T. // Bell Telephone Labor Inc
PDF File 2423443.pdf 1.05 MB Shaun Ewing Jul 08, 1947 00:00
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US-2423443-A // High power electronic discharge device for generating ultra high frequency radiations // Fay Clifford E. // Bell Telephone Labor Inc
PDF File 2423444.pdf 1.17 MB Shaun Ewing Jul 08, 1947 00:00
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US-2423444-A // Electronic discharge device for ultra high frequency energy generation // West John W. // Bell Telephone Labor Inc
PDF File 2423459.pdf 494 kB Shaun Ewing Jul 08, 1947 00:00
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US-2423459-A // Frequency selective apparatus // Mason Warren P. // Bell Telephone Labor Inc
PDF File 2423466.pdf 277 kB Shaun Ewing Jul 08, 1947 00:00
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US-2423466-A // Time division multiplex // Peterson Eugene // Bell Telephone Labor Inc
PDF File 2423823.pdf 757 kB Shaun Ewing Jul 15, 1947 00:00
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US-2423823-A // Cellulose ester-polyester compositions and methods of preparing them // Baker William O. // Bell Telephone Labor Inc
PDF File 2423829.pdf 565 kB Shaun Ewing Jul 15, 1947 00:00
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US-2423829-A // Indicating system // Ferrell Enoch B. // Bell Telephone Labor Inc
PDF File 2424238.pdf 434 kB Shaun Ewing Jul 22, 1947 00:00
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US-2424238-A // Transmission line with active networks // Johnson Kenneth S. // Bell Telephone Labor Inc
PDF File 2424244.pdf 918 kB Shaun Ewing Jul 22, 1947 00:00
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US-2424244-A // Circuit for locking service observing teletypewriter during supervisory signal reception // Marshall Tola A. // Bell Telephone Labor Inc
PDF File 2424246.pdf 868 kB Shaun Ewing Jul 22, 1947 00:00
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US-2424246-A // Frequency-modulated crystal oscillator // Mason Warren P. // Bell Telephone Labor Inc
PDF File 2424549.pdf 523 kB Shaun Ewing Jul 29, 1947 00:00
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US-2424549-A // Submarine signal detector or receiver // Jr. Robert Black, ; Romanow Frank F. // Bell Telephone Labor Inc
PDF File 2424551.pdf 676 kB Shaun Ewing Jul 29, 1947 00:00
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US-2424551-A // Controlling mechanism // Brown Henry B. // Bell Telephone Labor Inc
PDF File 2424561.pdf 604 kB Shaun Ewing Jul 29, 1947 00:00
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US-2424561-A // System for locating the source of an explosion wave // Edwards Paul G. ; Robertson Donald D. // Bell Telephone Labor Inc
PDF File 2424564.pdf 329 kB Shaun Ewing Jul 29, 1947 00:00
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US-2424564-A // Geared speed reducer with means for adjusting backlash // Halbrook Warwick W. // Bell Telephone Labor Inc
PDF File 2424571.pdf 1.36 MB Shaun Ewing Jul 29, 1947 00:00
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US-2424571-A // Telegraph alarm system // Lang Wilmarth Y. // Bell Telephone Labor Inc
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