Name Size Creator Creation Date Labels Comment  
PDF File 3050584.pdf 1.43 MB Shaun Ewing Aug 21, 1962 00:00
  • No labels
US-3050584-A // Conference telephone apparatus // Miller Wade M. // American Telephone & Telegraph
PDF File 3043905.pdf 1.30 MB Shaun Ewing Jul 10, 1962 00:00
  • No labels
US-3043905-A // Tandem transmitter start system // Semancik Joseph T. ; Walker Charles R. // American Telephone & Telegraph
PDF File 3041410.pdf 455 kB Shaun Ewing Jun 26, 1962 00:00
  • No labels
US-3041410-A // Delay busy circuit // Stenger William J. // American Telephone & Telegraph
PDF File 3038031.pdf 1.45 MB Shaun Ewing Jun 05, 1962 00:00
  • No labels
US-3038031-A // Permutation code selecting circuit // Clark Orville A. ; Maxwell John L. ; Thompson Harold K. // American Telephone & Telegraph
PDF File 3021398.pdf 1.65 MB Shaun Ewing Feb 13, 1962 00:00
  • No labels
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 3021397.pdf 1.24 MB Shaun Ewing Feb 13, 1962 00:00
  • No labels
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 3020525.pdf 1.42 MB Shaun Ewing Feb 06, 1962 00:00
  • No labels
US-3020525-A // Record controlled translator // Garrison Richard J. ; Henches Eugene W. ; Spiro George // American Telephone & Telegraph
PDF File 3019388.pdf 839 kB Shaun Ewing Jan 30, 1962 00:00
  • No labels
US-3019388-A // Signal timing circuit // Thorbrogger Holger H. // American Telephone & Telegraph
PDF File 2997697.pdf 755 kB Shaun Ewing Aug 22, 1961 00:00
  • No labels
US-2997697-A // Data transmission system // Macadam Walter K. // American Telephone & Telegraph
PDF File 2997543.pdf 494 kB Shaun Ewing Aug 22, 1961 00:00
  • No labels
US-2997543-A // Reduction of effect of hits on telegraph reception // Britt Horace J. // American Telephone & Telegraph
PDF File 2993958.pdf 485 kB Shaun Ewing Jul 25, 1961 00:00
  • No labels
US-2993958-A // Radiant energy receiving system // Barnes Richard R. // American Telephone & Telegraph
PDF File 2993952.pdf 2.46 MB Shaun Ewing Jul 25, 1961 00:00
  • No labels
US-2993952-A // System for testing sequential code selector // Neiswinter James T. // American Telephone & Telegraph
PDF File 2993095.pdf 1.97 MB Shaun Ewing Jul 18, 1961 00:00
  • No labels
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 2991547.pdf 332 kB Shaun Ewing Jul 11, 1961 00:00
  • No labels
US-2991547-A // Tool for replacing jack studs // Burns Herbert W. // American Telephone & Telegraph
PDF File 2991353.pdf 470 kB Shaun Ewing Jul 04, 1961 00:00
  • No labels
US-2991353-A // Automatic frequency control for multitransmitter radio system // Barnes Richard R. // American Telephone & Telegraph
PDF File 2988712.pdf 341 kB Shaun Ewing Jun 13, 1961 00:00
  • No labels
US-2988712-A // Transmission network // Rhodes Harold A. // American Telephone & Telegraph
PDF File 2985720.pdf 628 kB Shaun Ewing May 23, 1961 00:00
  • No labels
US-2985720-A // Trunk concentrator // Jr. William C. Twomey, // American Telephone & Telegraph
PDF File 2981803.pdf 1.88 MB Shaun Ewing Apr 25, 1961 00:00
  • No labels
US-2981803-A // Program switching system // Bachelet Albert E. ; Bibbins George S. ; Celentano Arnold J. ; Pullis George A. // Bell Telephone Labor Inc ; American Telephone & Telegraph
PDF File 2981799.pdf 1.70 MB Shaun Ewing Apr 25, 1961 00:00
  • No labels
US-2981799-A // Data recording system // Riggen Winnifred // American Telephone & Telegraph
PDF File 2979556.pdf 5.38 MB Shaun Ewing Apr 11, 1961 00:00
  • No labels
US-2979556-A // Semiautomatic teletypewriter tape relay system // Anspach Russell J. ; Clark Robert C. ; Neiswinter James T. ; Tamasi Prospero A. // American Telephone & Telegraph
  1. Prev
  2. 1
  3. 2
  4. 3
  5. 4
  6. 5
  7. 6
  8. 7
  9. 8
  10. 9
  11. 10
  12. 11
  13. 22
  14. Next