Name Size Creator Creation Date Labels Comment  
PDF File 2666578.pdf 820 kB Shaun Ewing Jan 19, 1954 00:00
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US-2666578-A // Switching control system // Juley Joseph P. // Bell Telephone Labor Inc
PDF File 2666357.pdf 846 kB Shaun Ewing Jan 19, 1954 00:00
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US-2666357-A // Optical system for nonintermittent film projectors // Graham Robert E. ; Mattke Charles F. // Bell Telephone Labor Inc
PDF File 2666356.pdf 792 kB Shaun Ewing Jan 19, 1954 00:00
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US-2666356-A // Servo system for nonintermittent film projectors // Graham Robert E. ; Mattke Charles F. // Bell Telephone Labor Inc
PDF File 2666196.pdf 740 kB Shaun Ewing Jan 12, 1954 00:00
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US-2666196-A // Frequency station calling system using bifurcated piezoelectric elements // Kinsley Thomas G. ; Mason Warren P. // Bell Telephone Labor Inc
PDF File 2666195.pdf 839 kB Shaun Ewing Jan 12, 1954 00:00
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US-2666195-A // Sequential circuits // Bachelet Albert E. ; Pitlik Hillel // Bell Telephone Labor Inc
PDF File 2666163.pdf 796 kB Shaun Ewing Jan 12, 1954 00:00
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US-2666163-A // Electron device with long electron path // Clogston Albert M. // Bell Telephone Labor Inc
PDF File 2666100.pdf 1.27 MB Shaun Ewing Jan 12, 1954 00:00
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US-2666100-A // Measuring apparatus // Slonczewski Thaddeus // Bell Telephone Labor Inc
PDF File 2666099.pdf 1.37 MB Shaun Ewing Jan 12, 1954 00:00
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US-2666099-A // Loss measurement in two-way electrical transmission systems // Bonner Arthur L. // Bell Telephone Labor Inc
PDF File 2666097.pdf 405 kB Shaun Ewing Jan 12, 1954 00:00
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US-2666097-A // Calling dial device // Breivogel William G. // Bell Telephone Labor Inc
PDF File 2666096.pdf 17.85 MB Shaun Ewing Jan 12, 1954 00:00
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US-2666096-A // Electronic discharge-tube controlled telephone switching system // Cornell Warren A. ; Hall Nathan I. ; Hecht George ; Koechling Charles D. ; Korn Franklin A. ; Powell Harold E. // Bell Telephone Labor Inc
PDF File 2665845.pdf 939 kB Shaun Ewing Jan 12, 1954 00:00
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US-2665845-A // Transistor trigger circuit for operating relays // Trent Robert L. // Bell Telephone Labor Inc
PDF File 2664538.pdf 626 kB Shaun Ewing Dec 29, 1953 00:00
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US-2664538-A // Current supply apparatus // Spencer Harry H. // Bell Telephone Labor Inc
PDF File 2664505.pdf 537 kB Shaun Ewing Dec 29, 1953 00:00
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US-2664505-A // Frequency modulation detector // Berger Uriah S. // Bell Telephone Labor Inc
PDF File 2664504.pdf 975 kB Shaun Ewing Dec 29, 1953 00:00
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US-2664504-A // Cathode-ray decoder for pulse code modulation // Bennett William R. // Bell Telephone Labor Inc
PDF File 2663848.pdf 2.57 MB Shaun Ewing Dec 22, 1953 00:00
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US-2663848-A // Electromagnetic wave microwave frequency filter // Lewis Willard D. // Bell Telephone Labor Inc
PDF File 2663830.pdf 398 kB Shaun Ewing Dec 22, 1953 00:00
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US-2663830-A // Semiconductor signal translating device // Oliver Bernard M. // Bell Telephone Labor Inc
PDF File 2663829.pdf 502 kB Shaun Ewing Dec 22, 1953 00:00
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US-2663829-A // Semiconductor translator // Brattain Walter H. // Bell Telephone Labor Inc
PDF File 2663819.pdf 1.90 MB Shaun Ewing Dec 22, 1953 00:00
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US-2663819-A // Electrode support and spacing structure for electron discharge devices // Goddard Charles T. // Bell Telephone Labor Inc
PDF File 2663818.pdf 834 kB Shaun Ewing Dec 22, 1953 00:00
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US-2663818-A // Electron discharge device // Walsh Edward J. // Bell Telephone Labor Inc
PDF File 2663806.pdf 643 kB Shaun Ewing Dec 22, 1953 00:00
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US-2663806-A // Semiconductor signal translating device // Darlington Sidney // Bell Telephone Labor Inc
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