Name Size Creator Creation Date Labels Comment  
PDF File 2719246.pdf 903 kB Shaun Ewing Sept 27, 1955 00:00
  • No labels
US-2719246-A // Electron discharge device // Goddard Charles T. // Bell Telephone Labor Inc
PDF File 2719270.pdf 1.29 MB Shaun Ewing Sept 27, 1955 00:00
  • No labels
US-2719270-A // Transmission regulation // Ketchledge Raymond W. // Bell Telephone Labor Inc
PDF File 2719272.pdf 612 kB Shaun Ewing Sept 27, 1955 00:00
  • No labels
US-2719272-A // Reduction of transient effects in wide band transmission systems // Gannett Danforth K. // Bell Telephone Labor Inc
PDF File 2719289.pdf 573 kB Shaun Ewing Sept 27, 1955 00:00
  • No labels
US-2719289-A // Electrical conversion system with high and low voltage alarm // Jr. John M. Barstow, // Bell Telephone Labor Inc
PDF File 2719773.pdf 895 kB Shaun Ewing Oct 04, 1955 00:00
  • No labels
US-2719773-A // Electrical circuit employing magnetic cores // Karnaugh Maurice // Bell Telephone Labor Inc
PDF File 2719775.pdf 573 kB Shaun Ewing Oct 04, 1955 00:00
  • No labels
US-2719775-A // Stylus assembly // Jr. Charles H. Erving, // Bell Telephone Labor Inc
PDF File 2719881.pdf 1.82 MB Shaun Ewing Oct 04, 1955 00:00
  • No labels
US-2719881-A // Line finder for step-by-step telephone system // Dubuar Arthur S. ; Riddell George // Bell Telephone Labor Inc
PDF File 2719886.pdf 5.85 MB Shaun Ewing Oct 04, 1955 00:00
  • No labels
US-2719886-A // Intertoll trunk testing system // Shoffstall Hugh F. // Bell Telephone Labor Inc
PDF File 2719960.pdf 708 kB Shaun Ewing Oct 04, 1955 00:00
  • No labels
US-2719960-A // Alarm sending system // Bachelet Albert E. ; Pullis George A. // Bell Telephone Labor Inc
PDF File 2719961.pdf 822 kB Shaun Ewing Oct 04, 1955 00:00
  • No labels
US-2719961-A // Electrical circuit employing magnetic cores // Karnaugh Maurice // Bell Telephone Labor Inc
PDF File 2719962.pdf 851 kB Shaun Ewing Oct 04, 1955 00:00
  • No labels
US-2719962-A // Electrical circuit employing magnetic cores // Karnaugh Maurice // Bell Telephone Labor Inc
PDF File 2719964.pdf 781 kB Shaun Ewing Oct 04, 1955 00:00
  • No labels
US-2719964-A // Magnetic surface writing circuit utilizing magnetic cores // Mcguigan John H. ; Vaughan Henry E. // Bell Telephone Labor Inc
PDF File 2720557.pdf 4.59 MB Shaun Ewing Oct 11, 1955 00:00
  • No labels
US-2720557-A // Time division pulse code modulation system employing continuous coding tube // Goodall William M. // Bell Telephone Labor Inc
PDF File 2720627.pdf 367 kB Shaun Ewing Oct 11, 1955 00:00
  • No labels
US-2720627-A // Impedance matching networks // Llewellyn Frederick B. // Bell Telephone Labor Inc
PDF File 2720629.pdf 700 kB Shaun Ewing Oct 11, 1955 00:00
  • No labels
US-2720629-A // Orifice coupling to resonant cavities // Edson William A. ; Lange Russell W. // Bell Telephone Labor Inc
PDF File 2720630.pdf 784 kB Shaun Ewing Oct 11, 1955 00:00
  • No labels
US-2720630-A // Orifice coupling for high q cavities // Kannenberg Walter F. ; Wilson Ira G. // Bell Telephone Labor Inc
PDF File 2721235.pdf 7.38 MB Shaun Ewing Oct 18, 1955 00:00
  • No labels
US-2721235-A // Electrical transmission testing system // Mckim Burton ; Neely Thomas H. // Bell Telephone Labor Inc
PDF File 2721897.pdf 1.25 MB Shaun Ewing Oct 25, 1955 00:00
  • No labels
US-2721897-A // Carrier wave communication system // Schneckloth Harry H. // Bell Telephone Labor Inc
PDF File 2721900.pdf 759 kB Shaun Ewing Oct 25, 1955 00:00
  • No labels
US-2721900-A // Non-linear encoded transmission // Oliver Bernard M. // Bell Telephone Labor Inc
PDF File 2721903.pdf 1.60 MB Shaun Ewing Oct 25, 1955 00:00
  • No labels
US-2721903-A // Line selection system // Avery Robert C. // Bell Telephone Labor Inc
  1. Prev
  2. 1
  3. 63
  4. 64
  5. 65
  6. 66
  7. 67
  8. 68
  9. 69
  10. 70
  11. 71
  12. 72
  13. Next