Name Size Creator Creation Date Labels Comment  
PDF File 2993095.pdf 1.97 MB Shaun Ewing Jul 18, 1961 00:00
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US-2993095-A // Private branch exchange telephone system involving a cordless type switchboard // Arnold Philip H. ; Desnoes Arnold B. ; Stewart G. Douglass ; Wood Edson R. // American Telephone & Telegraph
PDF File 2993952.pdf 2.46 MB Shaun Ewing Jul 25, 1961 00:00
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US-2993952-A // System for testing sequential code selector // Neiswinter James T. // American Telephone & Telegraph
PDF File 2993958.pdf 485 kB Shaun Ewing Jul 25, 1961 00:00
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US-2993958-A // Radiant energy receiving system // Barnes Richard R. // American Telephone & Telegraph
PDF File 2997543.pdf 494 kB Shaun Ewing Aug 22, 1961 00:00
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US-2997543-A // Reduction of effect of hits on telegraph reception // Britt Horace J. // American Telephone & Telegraph
PDF File 2997697.pdf 755 kB Shaun Ewing Aug 22, 1961 00:00
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US-2997697-A // Data transmission system // Macadam Walter K. // American Telephone & Telegraph
PDF File 3019388.pdf 839 kB Shaun Ewing Jan 30, 1962 00:00
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US-3019388-A // Signal timing circuit // Thorbrogger Holger H. // American Telephone & Telegraph
PDF File 3020525.pdf 1.42 MB Shaun Ewing Feb 06, 1962 00:00
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US-3020525-A // Record controlled translator // Garrison Richard J. ; Henches Eugene W. ; Spiro George // American Telephone & Telegraph
PDF File 3021397.pdf 1.24 MB Shaun Ewing Feb 13, 1962 00:00
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US-3021397-A // Repeater for checking circuit continuity of a siganling system // Barnett Cecil H. ; Large Wayne V. K. ; Pruden Harold M. // American Telephone & Telegraph ; Bell Telephone Labor Inc
PDF File 3021398.pdf 1.65 MB Shaun Ewing Feb 13, 1962 00:00
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US-3021398-A // Continuous checking of circuit continuity of a signaling system // Barnett Cecil H. ; Large Wayne V. K. ; Pruden Harold M. // American Telephone & Telegraph ; Bell Telephone Labor Inc
PDF File 3038031.pdf 1.45 MB Shaun Ewing Jun 05, 1962 00:00
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US-3038031-A // Permutation code selecting circuit // Clark Orville A. ; Maxwell John L. ; Thompson Harold K. // American Telephone & Telegraph
PDF File 3041410.pdf 455 kB Shaun Ewing Jun 26, 1962 00:00
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US-3041410-A // Delay busy circuit // Stenger William J. // American Telephone & Telegraph
PDF File 3043905.pdf 1.30 MB Shaun Ewing Jul 10, 1962 00:00
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US-3043905-A // Tandem transmitter start system // Semancik Joseph T. ; Walker Charles R. // American Telephone & Telegraph
PDF File 3050584.pdf 1.43 MB Shaun Ewing Aug 21, 1962 00:00
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US-3050584-A // Conference telephone apparatus // Miller Wade M. // American Telephone & Telegraph
PDF File 3054949.pdf 1.04 MB Shaun Ewing Sept 18, 1962 00:00
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US-3054949-A // Method of and apparatus for identifying discrete tip and ring conductor pairs in telephone cable // Bates George W. ; Clark Robert F. // American Telephone & Telegraph
PDF File 3056855.pdf 563 kB Shaun Ewing Oct 02, 1962 00:00
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US-3056855-A // Code translator // Yeoman John A. // American Telephone & Telegraph
PDF File 3057965.pdf 1.20 MB Shaun Ewing Oct 09, 1962 00:00
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US-3057965-A // Braille telephone switchboard unit // Banks Harry R. ; Nickerson Charles // American Telephone & Telegraph
PDF File 3078336.pdf 1.89 MB Shaun Ewing Feb 19, 1963 00:00
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US-3078336-A // Teletypewriter message distributing system // Cameron Phillip G. ; Maxwell John L. // American Telephone & Telegraph
PDF File 3082299.pdf 1.13 MB Shaun Ewing Mar 19, 1963 00:00
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US-3082299-A // Alarm testing device // Reter George A. // American Telephone & Telegraph
PDF File 3099718.pdf 3.83 MB Shaun Ewing Jul 30, 1963 00:00
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US-3099718-A // Universal line concentrator // Fisher Richard G. // American Telephone & Telegraph
PDF File 3101393.pdf 885 kB Shaun Ewing Aug 20, 1963 00:00
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US-3101393-A // Cordless type switchboard // Desnoes Arnold B. ; Fullerton Dick P. ; Shea Philip D. // American Telephone & Telegraph
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