Name Size Creator Creation Date Labels Comment  
PDF File 2978542.pdf 406 kB Shaun Ewing Apr 04, 1961 00:00
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US-2978542-A // Impedance-matching network // Huxtable Ruth L. // American Telephone & Telegraph
PDF File 2965716.pdf 558 kB Shaun Ewing Dec 20, 1960 00:00
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US-2965716-A // Telegraph switching apparatus // Prince George E. // American Telephone & Telegraph
PDF File 2965713.pdf 961 kB Shaun Ewing Dec 20, 1960 00:00
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US-2965713-A // Teletypewriter storage control system // Beyland Sidney W. // American Telephone & Telegraph
PDF File 2961488.pdf 1.21 MB Shaun Ewing Nov 22, 1960 00:00
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US-2961488-A // Permutation code selecting circuit // Cameron Phillip G. ; Clark Orville A. ; Maxwell John L. // American Telephone & Telegraph
PDF File 2958832.pdf 443 kB Shaun Ewing Nov 01, 1960 00:00
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US-2958832-A // Differential-phase corrector // Clark Jean H. // American Telephone & Telegraph
PDF File 2958831.pdf 402 kB Shaun Ewing Nov 01, 1960 00:00
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US-2958831-A // Equalizer // Clark Jean H. // American Telephone & Telegraph
PDF File 2955151.pdf 1.38 MB Shaun Ewing Oct 04, 1960 00:00
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US-2955151-A // Teletypewriter switching system // Semancik Joseph T. // American Telephone & Telegraph
PDF File 2952733.pdf 2.52 MB Shaun Ewing Sept 13, 1960 00:00
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US-2952733-A // Device for automatically producing teletypewriter signals // Neiswinter James T. // American Telephone & Telegraph
PDF File 2948777.pdf 1.15 MB Shaun Ewing Aug 09, 1960 00:00
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US-2948777-A // Test set for selector mechanism // Andrews Clayton F. ; Chamberlin Daniel W. ; Neiswinter James T. // American Telephone & Telegraph
PDF File 2947803.pdf 1.14 MB Shaun Ewing Aug 02, 1960 00:00
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US-2947803-A // Clock controlled automatic recycling switching circuit // Hanley Frank H. ; Votaw Clarence J. // American Telephone & Telegraph
PDF File 2939915.pdf 800 kB Shaun Ewing Jun 07, 1960 00:00
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US-2939915-A // Pulse measurement // Britt Horace J. ; Cosh Francis R. // American Telephone & Telegraph
PDF File 2929970.pdf 846 kB Shaun Ewing Mar 22, 1960 00:00
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US-2929970-A // Telegraph repeater system // Foley Daniel E. ; Hanley Frank H. // American Telephone & Telegraph
PDF File 2922847.pdf 2.25 MB Shaun Ewing Jan 26, 1960 00:00
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US-2922847-A // Distributing system // Dunning Sanford F. // American Telephone & Telegraph
PDF File 2921116.pdf 966 kB Shaun Ewing Jan 12, 1960 00:00
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US-2921116-A // Teletypewriter automatic alarm reporting system // Makary William E. // American Telephone & Telegraph
PDF File 2913526.pdf 568 kB Shaun Ewing Nov 17, 1959 00:00
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US-2913526-A // Calling station identification circuit // Smits John M. ; Sturtevant Michael J. // American Telephone & Telegraph
PDF File 2909775.pdf 203 kB Shaun Ewing Oct 20, 1959 00:00
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US-2909775-A // Antenna // Barnes Richard R. // American Telephone & Telegraph
PDF File 2908382.pdf 648 kB Shaun Ewing Oct 13, 1959 00:00
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US-2908382-A // Display carrying unit for color telephone sets // Turner Henry G. // American Telephone & Telegraph
PDF File 2901544.pdf 767 kB Shaun Ewing Aug 25, 1959 00:00
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US-2901544-A // Four-party station identification circuit // Collins John J. // American Telephone & Telegraph
PDF File 2901542.pdf 1.71 MB Shaun Ewing Aug 25, 1959 00:00
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US-2901542-A // "wake up" or "morning call" system for automatically signaling private branch exchange extension stations // Henches Eugene W. ; Sheldon Ivan R. // American Telephone & Telegraph
PDF File 2896020.pdf 1.95 MB Shaun Ewing Jul 21, 1959 00:00
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US-2896020-A // Multiple transmitter control circuit // Goodman Charles J. ; Walker Charles R. // American Telephone & Telegraph
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