Name Size Creator Creation Date Labels Comment  
PDF File 2549064.pdf 1.62 MB Shaun Ewing Apr 17, 1951 00:00
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US-2549064-A // Multiswitching gaseous discharge device // Depp Wallace A. // Bell Telephone Labor Inc
PDF File 2548672.pdf 470 kB Shaun Ewing Apr 10, 1951 00:00
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US-2548672-A // Multiresonant wave-guide structure // Lewis Willard D. // Bell Telephone Labor Inc
PDF File 2548671.pdf 779 kB Shaun Ewing Apr 10, 1951 00:00
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US-2548671-A // Directional radio reception // Jr. John G. Kreer, // Bell Telephone Labor Inc
PDF File 2548661.pdf 2.04 MB Shaun Ewing Apr 10, 1951 00:00
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US-2548661-A // Elastic time division multiplex system // Feldman Carl B. H. // Bell Telephone Labor Inc
PDF File 2548655.pdf 896 kB Shaun Ewing Apr 10, 1951 00:00
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US-2548655-A // Directive dielectric guide antenna // Cutler Cassius C. // Bell Telephone Labor Inc
PDF File 2547549.pdf 799 kB Shaun Ewing Apr 03, 1951 00:00
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US-2547549-A // Ringing equipment for pulse modulation systems // Wennemer Gerard P. // Bell Telephone Labor Inc
PDF File 2547539.pdf 984 kB Shaun Ewing Apr 03, 1951 00:00
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US-2547539-A // Signal wave duplexing system // Ring Douglas H. // Bell Telephone Labor Inc
PDF File 2547538.pdf 360 kB Shaun Ewing Apr 03, 1951 00:00
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US-2547538-A // Briding amplifier // Rieke John W. // Bell Telephone Labor Inc
PDF File 2547537.pdf 794 kB Shaun Ewing Apr 03, 1951 00:00
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US-2547537-A // Telephone ringer // Power James R. // Bell Telephone Labor Inc
PDF File 2547525.pdf 490 kB Shaun Ewing Apr 03, 1951 00:00
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US-2547525-A // Recorder checking device // Hague Alfred E. // Bell Telephone Labor Inc
PDF File 2547521.pdf 265 kB Shaun Ewing Apr 03, 1951 00:00
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US-2547521-A // Pressure bomb for chemical and physical reactions // Buehler Ernest // Bell Telephone Labor Inc
PDF File 2547416.pdf 1.30 MB Shaun Ewing Apr 03, 1951 00:00
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US-2547416-A // Dielectric lens // Skellett Albert M. // Bell Telephone Labor Inc
PDF File 2547406.pdf 389 kB Shaun Ewing Apr 03, 1951 00:00
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US-2547406-A // Method and means for controlling the resistance of oxidic semiconductors // Morin Francis J. // Bell Telephone Labor Inc
PDF File 2547399.pdf 298 kB Shaun Ewing Apr 03, 1951 00:00
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US-2547399-A // Winding mechanism for tight winding paper tape on spools // Leveridge Walter J. // Bell Telephone Labor Inc
PDF File 2547397.pdf 888 kB Shaun Ewing Apr 03, 1951 00:00
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US-2547397-A // Signal sampling and modulation // Kirkpatrick William E. // Bell Telephone Labor Inc
PDF File 2547386.pdf 1.39 MB Shaun Ewing Apr 03, 1951 00:00
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US-2547386-A // Current storage device utilizing semiconductor // Gray Frank // Bell Telephone Labor Inc
PDF File 2547142.pdf 531 kB Shaun Ewing Apr 03, 1951 00:00
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US-2547142-A // Secondary emission amplifier // Shepherd William G. // Bell Telephone Labor Inc
PDF File 2547133.pdf 306 kB Shaun Ewing Apr 03, 1951 00:00
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US-2547133-A // Wave filter // Lovell George H. // Bell Telephone Labor Inc
PDF File 2547107.pdf 684 kB Shaun Ewing Apr 03, 1951 00:00
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US-2547107-A // Stabilized amplifier // Anderson Attell B. // Bell Telephone Labor Inc
PDF File 2546840.pdf 970 kB Shaun Ewing Mar 27, 1951 00:00
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US-2546840-A // Wave guide phase shifter // Tyrrell Warren A. // Bell Telephone Labor Inc
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