Name Size Creator Creation Date Labels Comment  
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 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 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 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 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 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 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 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 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 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 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 2719190.pdf 951 kB Shaun Ewing Sept 27, 1955 00:00
  • No labels
US-2719190-A // High-efficiency translating circuit // Raisbeck Gordon // Bell Telephone Labor Inc
PDF File 2719189.pdf 826 kB Shaun Ewing Sept 27, 1955 00:00
  • No labels
US-2719189-A // Prevention of interpulse interference in pulse multiplex transmission // Bennett William R. ; Feldman Carl B. H. // Bell Telephone Labor Inc
PDF File 2719188.pdf 2.01 MB Shaun Ewing Sept 27, 1955 00:00
  • No labels
US-2719188-A // Non-synchronous time division multiplex telephone transmission // Pierce John R. // Bell Telephone Labor Inc
PDF File 2719187.pdf 2.27 MB Shaun Ewing Sept 27, 1955 00:00
  • No labels
US-2719187-A // High frequency pulse transmission // Pierce John R. // Bell Telephone Labor Inc
PDF File 2718622.pdf 742 kB Shaun Ewing Sept 20, 1955 00:00
  • No labels
US-2718622-A // Attenuation equalizer // Harkless Earl T. // Bell Telephone Labor Inc
PDF File 2718613.pdf 281 kB Shaun Ewing Sept 20, 1955 00:00
  • No labels
US-2718613-A // Transistor circuit for operating a relay // Harris James R. // Bell Telephone Labor Inc
PDF File 2718592.pdf 601 kB Shaun Ewing Sept 20, 1955 00:00
  • No labels
US-2718592-A // Antenna // Smith Phillip H. // Bell Telephone Labor Inc
PDF File 2718589.pdf 1.41 MB Shaun Ewing Sept 20, 1955 00:00
  • No labels
US-2718589-A // Radio relay system // Staples Elliot M. // Bell Telephone Labor Inc
PDF File 2718549.pdf 812 kB Shaun Ewing Sept 20, 1955 00:00
  • No labels
US-2718549-A // Continuous film motion projector for television cameras and film recorders // Mattke Charles F. // 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. 10
  12. 72
  13. Next