Name Size Creator Creation Date Labels Comment  
PDF File 2471976.pdf 843 kB Shaun Ewing May 31, 1949 00:00
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US-2471976-A // Voltage regulation // Potter James A. // Bell Telephone Labor Inc
PDF File 2471970.pdf 422 kB Shaun Ewing May 31, 1949 00:00
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US-2471970-A // Wiring device // Miloche Herman A. // Bell Telephone Labor Inc
PDF File 2471967.pdf 534 kB Shaun Ewing May 31, 1949 00:00
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US-2471967-A // Piezoelectric type switching relay // Mason Warren P. // Bell Telephone Labor Inc
PDF File 2471966.pdf 3.68 MB Shaun Ewing May 31, 1949 00:00
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US-2471966-A // Ground trainer for aircraft personnel // Lukacs Joseph J. ; Rippere Robert O. // Bell Telephone Labor Inc
PDF File 2471712.pdf 560 kB Shaun Ewing May 31, 1949 00:00
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US-2471712-A // Intercommunication teletypewriter system // Bacon Walter M. ; Walker Charles R. // Bell Telephone Labor Inc ; American Telephone & Telegraph
PDF File 2471516.pdf 966 kB Shaun Ewing May 31, 1949 00:00
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US-2471516-A // Plan position indicating system and method // Bryant Newton W. // Bell Telephone Labor Inc
PDF File 2471419.pdf 943 kB Shaun Ewing May 31, 1949 00:00
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US-2471419-A // Tunable resonant cavity with adjustable walls // Edson William A. ; Kannenberg Walter F. // Bell Telephone Labor Inc
PDF File 2471315.pdf 3.69 MB Shaun Ewing May 24, 1949 00:00
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US-2471315-A // Aircraft trainer for aerial gunners // Dehmel Richard C. // Bell Telephone Labor Inc
PDF File 2471284.pdf 937 kB Shaun Ewing May 24, 1949 00:00
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US-2471284-A // Directive antenna system // Rea Wilton T. // Bell Telephone Labor Inc
PDF File 2471278.pdf 896 kB Shaun Ewing May 24, 1949 00:00
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US-2471278-A // Gun sight control // Meacham Larned A. // Bell Telephone Labor Inc
PDF File 2471268.pdf 908 kB Shaun Ewing May 24, 1949 00:00
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US-2471268-A // Index pulse generating circuit // Gaines Wilbur L. // Bell Telephone Labor Inc
PDF File 2471264.pdf 1.37 MB Shaun Ewing May 24, 1949 00:00
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US-2471264-A // Radio object location system // Doherty William H. // Bell Telephone Labor Inc
PDF File 2471263.pdf 978 kB Shaun Ewing May 24, 1949 00:00
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US-2471263-A // Ionic discharge device // Depew Charles // Bell Telephone Labor Inc
PDF File 2471262.pdf 645 kB Shaun Ewing May 24, 1949 00:00
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US-2471262-A // Means for multiplying voltages // Cousins Van M. // Bell Telephone Labor Inc
PDF File 2470838.pdf 913 kB Shaun Ewing May 24, 1949 00:00
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US-2470838-A // Power supply system // Stoller Hugh M. // Bell Telephone Labor Inc
PDF File 2470826.pdf 313 kB Shaun Ewing May 24, 1949 00:00
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US-2470826-A // Fixed capacitor // Mcmahon William // Bell Telephone Labor Inc
PDF File 2470825.pdf 713 kB Shaun Ewing May 24, 1949 00:00
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US-2470825-A // Electrical contact protection network // Mathes Robert C. // Bell Telephone Labor Inc
PDF File 2470468.pdf 2.00 MB Shaun Ewing May 17, 1949 00:00
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US-2470468-A // Ground trainer for aircraft // Buchanan Russell B. // Bell Telephone Labor Inc
PDF File 2469977.pdf 483 kB Shaun Ewing May 10, 1949 00:00
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US-2469977-A // Pulser circuit // Morrison Howard // Bell Telephone Labor Inc
PDF File 2469964.pdf 857 kB Shaun Ewing May 10, 1949 00:00
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US-2469964-A // Electron discharge apparatus // Hartman Paul L. // Bell Telephone Labor Inc
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