Name Size Creator Creation Date Labels Comment  
PDF File 2423443.pdf 1.05 MB Shaun Ewing Jul 08, 1947 00:00
  • No labels
US-2423443-A // High power electronic discharge device for generating ultra high frequency radiations // Fay Clifford E. // Bell Telephone Labor Inc
PDF File 2414479.pdf 1.05 MB Shaun Ewing Jan 21, 1947 00:00
  • No labels
US-2414479-A // Impulse generator // Miller Ohmer R. // Bell Telephone Labor Inc
PDF File 2492356.pdf 1.05 MB Shaun Ewing Dec 27, 1949 00:00
  • No labels
US-2492356-A // Radio object locating training device with error indication // Cesareo Orfeo // Bell Telephone Labor Inc
PDF File 2408072.pdf 1.04 MB Shaun Ewing Sept 24, 1946 00:00
  • No labels
US-2408072-A // Telephone repeater circuit // Johnson Kenneth S. // Bell Telephone Labor Inc
PDF File 2453243.pdf 1.04 MB Shaun Ewing Nov 09, 1948 00:00
  • No labels
US-2453243-A // Frequency modulating and harmonic producer apparatus // Mason Warren P. // Bell Telephone Labor Inc
PDF File 2436384.pdf 1.04 MB Shaun Ewing Feb 24, 1948 00:00
  • No labels
US-2436384-A // Sound recording device // Fletcher Harvey ; Muller John F. ; Jr. Karl D. Swartzel, // Bell Telephone Labor Inc
PDF File 2406053.pdf 1.04 MB Shaun Ewing Aug 20, 1946 00:00
  • No labels
US-2406053-A // Telephone system // Wright Paul L. // Bell Telephone Labor Inc
PDF File 2516587.pdf 1.04 MB Shaun Ewing Jul 25, 1950 00:00
  • No labels
US-2516587-A // Correction of errors in pulse code communication // Peterson Eugene // Bell Telephone Labor Inc
PDF File 2481932.pdf 1.03 MB Shaun Ewing Sept 13, 1949 00:00
  • No labels
US-2481932-A // Supervisory signaling in telephone systems // Kille Lindley A. ; Robb Theodore D. // Bell Telephone Labor Inc
PDF File 2455846.pdf 1.03 MB Shaun Ewing Dec 07, 1948 00:00
  • No labels
US-2455846-A // Coaxial leadin for electron discharge devices // West John W. // Bell Telephone Labor Inc
PDF File 2438898.pdf 1.03 MB Shaun Ewing Apr 06, 1948 00:00
  • No labels
US-2438898-A // Radio object locating system training device // Campbell Thaddeus C. // Bell Telephone Labor Inc
PDF File 2457878.pdf 1.03 MB Shaun Ewing Jan 04, 1949 00:00
  • No labels
US-2457878-A // Solenoid operated switch // Dubuar Arthur S. // Bell Telephone Labor Inc
PDF File 2519426.pdf 1.03 MB Shaun Ewing Aug 22, 1950 00:00
  • No labels
US-2519426-A // Alternating current control device // Grant Dwight W. // Bell Telephone Labor Inc
PDF File 2527650.pdf 1.03 MB Shaun Ewing Oct 31, 1950 00:00
  • No labels
US-2527650-A // Synchronization of pulse transmission systems // Peterson Eugene // Bell Telephone Labor Inc
PDF File 2486491.pdf 1.03 MB Shaun Ewing Nov 01, 1949 00:00
  • No labels
US-2486491-A // Gate distributor circuits // Meacham Larned A. // Bell Telephone Labor Inc
PDF File 2458566.pdf 1.02 MB Shaun Ewing Jan 11, 1949 00:00
  • No labels
US-2458566-A // Distortion reduction in channel switching // Cox Leslie R. ; Huber George H. // Bell Telephone Labor Inc
PDF File 2532731.pdf 1.02 MB Shaun Ewing Dec 05, 1950 00:00
  • No labels
US-2532731-A // Visualization of complex waves // Potter Ralph K. // Bell Telephone Labor Inc
PDF File 2436397.pdf 1.02 MB Shaun Ewing Feb 24, 1948 00:00
  • No labels
US-2436397-A // Ultra high frequency oscillator // Morton Jack A. // Bell Telephone Labor Inc
PDF File 2432093.pdf 1.01 MB Shaun Ewing Dec 09, 1947 00:00
  • No labels
US-2432093-A // Wave transmission network // Fox Arthur Gardner // Bell Telephone Labor Inc
PDF File 2442788.pdf 1.01 MB Shaun Ewing Jun 08, 1948 00:00
  • No labels
US-2442788-A // Target course simulating mechanism for object locating training system // Treptow Frederick W. // Bell Telephone Labor Inc
  1. Prev
  2. 1
  3. 13
  4. 14
  5. 15
  6. 16
  7. 17
  8. 18
  9. 19
  10. 20
  11. 21
  12. 22
  13. 23
  14. 24
  15. 25
  16. 74
  17. Next