Name Size Creator Creation Date Labels Comment  
PDF File 2649508.pdf 890 kB Shaun Ewing Aug 18, 1953 00:00
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US-2649508-A // Interstage coupling circuit for wide band amplifiers // Harrsion Charles W. // 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 2683794.pdf 887 kB Shaun Ewing Jul 13, 1954 00:00
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US-2683794-A // Infrared energy source // Briggs Howard B. ; Haynes James R. ; Shockley William // Bell Telephone Labor Inc
PDF File 2657334.pdf 887 kB Shaun Ewing Oct 27, 1953 00:00
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US-2657334-A // Tunable magnetron // West John W. // Bell Telephone Labor Inc
PDF File 2573713.pdf 882 kB Shaun Ewing Nov 06, 1951 00:00
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US-2573713-A // Electrical wave guide switch // Kannenberg Walter F. // Bell Telephone Labor Inc
PDF File 2706221.pdf 878 kB Shaun Ewing Apr 12, 1955 00:00
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US-2706221-A // Two-step lockout system // Bjornson Bjorn G. // Bell Telephone Labor Inc
PDF File 2701279.pdf 878 kB Shaun Ewing Feb 01, 1955 00:00
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US-2701279-A // Multifrequency signaling system // Lovell Clarence A. ; Mcguigan John H. // Bell Telephone Labor Inc
PDF File 2583029.pdf 876 kB Shaun Ewing Jan 22, 1952 00:00
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US-2583029-A // Method of preparing glow discharge devices // Townsend Mark A. // Bell Telephone Labor Inc
PDF File 2596251.pdf 876 kB Shaun Ewing May 13, 1952 00:00
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US-2596251-A // Wave guide lens system // Kock Winston E. // Bell Telephone Labor Inc
PDF File 2651678.pdf 875 kB Shaun Ewing Sept 08, 1953 00:00
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US-2651678-A // Coding and signaling system // Edwards Paul G. ; Wurmser Alphons V. // Bell Telephone Labor Inc
PDF File 2662933.pdf 875 kB Shaun Ewing Dec 15, 1953 00:00
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US-2662933-A // Multiplex carrier telegraph system // Singer Fred J. // Bell Telephone Labor Inc
PDF File 2568823.pdf 874 kB Shaun Ewing Sept 25, 1951 00:00
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US-2568823-A // Loud-speaking telephone set // Potter Ralph K. // Bell Telephone Labor Inc
PDF File 2622211.pdf 873 kB Shaun Ewing Dec 16, 1952 00:00
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US-2622211-A // Stabilized transistor trigger circuit // Trent Robert L. // Bell Telephone Labor Inc
PDF File 2549551.pdf 873 kB Shaun Ewing Apr 17, 1951 00:00
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US-2549551-A // Grid electrode structure and manufacturing method therefor // Walsh Edward J. // Bell Telephone Labor Inc
PDF File 2612561.pdf 871 kB Shaun Ewing Sept 30, 1952 00:00
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US-2612561-A // Half-duplex telegraph repeater // Rea Wilton T. // Bell Telephone Labor Inc
PDF File 2617885.pdf 870 kB Shaun Ewing Nov 11, 1952 00:00
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US-2617885-A // Frequency changing regenerative pulse repeater // Cutler Cassius C. // Bell Telephone Labor Inc
PDF File 2691750.pdf 869 kB Shaun Ewing Oct 12, 1954 00:00
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US-2691750-A // Semiconductor amplifier // Shive John N. // 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 2581847.pdf 866 kB Shaun Ewing Jan 08, 1952 00:00
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US-2581847-A // Radiant energy object locating system // Espenschied Lloyd ; Chaffee Joseph G. // Bell Telephone Labor Inc
PDF File 2669666.pdf 864 kB Shaun Ewing Feb 16, 1954 00:00
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US-2669666-A // Piezoelectric transducer // Mason Warren P. ; Matthias Bernd T. // Bell Telephone Labor Inc
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