Name Size Creator Creation Date Labels Comment  
PDF File 2723311.pdf 8.26 MB Shaun Ewing Nov 08, 1955 00:00
  • No labels
US-2723311-A // Common control telephone systems // Malthaner William A. ; Vaughan Henry E. // Bell Telephone Labor Inc
PDF File 2723308.pdf 1.33 MB Shaun Ewing Nov 08, 1955 00:00
  • No labels
US-2723308-A // Automatic transcribing system // Vroom Edward // Bell Telephone Labor Inc
PDF File 2722675.pdf 648 kB Shaun Ewing Nov 01, 1955 00:00
  • No labels
US-2722675-A // Pulse counting system // Michal Joseph ; Staehler Robert E. // Bell Telephone Labor Inc
PDF File 2722664.pdf 687 kB Shaun Ewing Nov 01, 1955 00:00
  • No labels
US-2722664-A // Adjustable inductance device // Duncan Robert S. ; Jr. Henry A. Stone, // Bell Telephone Labor Inc
PDF File 2722655.pdf 503 kB Shaun Ewing Nov 01, 1955 00:00
  • No labels
US-2722655-A // Line voltage regulator // Anderson Frederic W. // Bell Telephone Labor Inc
PDF File 2722603.pdf 549 kB Shaun Ewing Nov 01, 1955 00:00
  • No labels
US-2722603-A // Peak voltage limiter // Dimond Thomas L. // Bell Telephone Labor Inc
PDF File 2722490.pdf 514 kB Shaun Ewing Nov 01, 1955 00:00
  • No labels
US-2722490-A // Germanium elements and methods of preparing same // Haynes James R. ; Heidenreich Robert D. // Bell Telephone Labor Inc
PDF File 2721980.pdf 616 kB Shaun Ewing Oct 25, 1955 00:00
  • No labels
US-2721980-A // Oscillator system // Hopper Andrew L. // Bell Telephone Labor Inc
PDF File 2721937.pdf 537 kB Shaun Ewing Oct 25, 1955 00:00
  • No labels
US-2721937-A // Relaxation oscillator // Braga Felix J. // Bell Telephone Labor Inc
PDF File 2721935.pdf 907 kB Shaun Ewing Oct 25, 1955 00:00
  • No labels
US-2721935-A // Duplex radio telephone system // Dorff Louis A. // Bell Telephone Labor Inc
PDF File 2721910.pdf 8.23 MB Shaun Ewing Oct 25, 1955 00:00
  • No labels
US-2721910-A // Routine line insulation testing circuit // Avery Robert C. // 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
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 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 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 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 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 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 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 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
  1. Prev
  2. 1
  3. 2
  4. 3
  5. 4
  6. 5
  7. 6
  8. 7
  9. 8
  10. 9
  11. 72
  12. Next