Name Size Creator Creation Date Labels Comment  
PDF File 1677185.pdf 580 kB Shaun Ewing Jul 17, 1928 00:00
  • No labels
US-1677185-A // Receiver // Kaisling William // Kellogg Switchboard & Supply
PDF File 866266.pdf 579 kB Shaun Ewing Sept 17, 1907 00:00
  • No labels
US-866266-A // Telephone system. // William W. Dean // Kellogg Switchboard & Supply
PDF File 2363095.pdf 578 kB Shaun Ewing Nov 21, 1944 00:00
  • No labels
US-2363095-A // Telephone substation ringer // Stehlik Frank J. ; Schumann Fred // Kellogg Switchboard & Supply
PDF File 1200277.pdf 577 kB Shaun Ewing Oct 03, 1916 00:00
  • No labels
US-1200277-A // Automatic-switching for operator's telephone. // Richard I. Utter // Kellogg Switchboard & Supply
PDF File 1201516.pdf 577 kB Shaun Ewing Oct 17, 1916 00:00
  • No labels
US-1201516-A // Lamp-jack. // Charles H. Smith // Kellogg Switchboard & Supply
PDF File 1226157.pdf 577 kB Shaun Ewing May 15, 1917 00:00
  • No labels
US-1226157-A // Combined telephone and signaling system. // Charles S. Winston // Kellogg Switchboard & Supply
PDF File 2200376.pdf 576 kB Shaun Ewing May 14, 1940 00:00
  • No labels
US-2200376-A // Generator control system // Shaver John // Kellogg Switchboard & Supply
PDF File 841769.pdf 574 kB Shaun Ewing Jan 22, 1907 00:00
  • No labels
US-841769-A // Telephone trunking system. // William W. Dean // Kellogg Switchboard & Supply
PDF File 2452431.pdf 574 kB Shaun Ewing Oct 26, 1948 00:00
  • No labels
US-2452431-A // Production of vulcanizable elastic coil cables having reversingly coiled portions // Collins Ralph D. ; Drigot William J. // Kellogg Switchboard & Supply
PDF File 862616.pdf 574 kB Shaun Ewing Aug 06, 1907 00:00
  • No labels
US-862616-A // Telephone system. // William W. Dean // Kellogg Switchboard & Supply
PDF File 1321181.pdf 573 kB Shaun Ewing Nov 11, 1919 00:00
  • No labels
US-1321181-A // Joseph s // Joseph S. Allen, Oe Illinois // Kellogg Switchboard And Supply Company, Of Chicago/illinois, A Corporation Of Illinois.
PDF File 1805846.pdf 572 kB Shaun Ewing May 19, 1931 00:00
  • No labels
US-1805846-A // Loop antenna // Potter Earl F. // Kellogg Switchboard & Supply
PDF File 592411.pdf 572 kB Shaun Ewing Oct 26, 1897 00:00
  • No labels
US-592411-A // Milo g // Milo G. Kellogg, Of Illinois // The Kellogg Switchboard And Supply Company, Of Same Place.
PDF File 1647418.pdf 571 kB Shaun Ewing Nov 01, 1927 00:00
  • No labels
US-1647418-A // Electric rectifier // Stazak Michael B. // Kellogg Switchboard & Supply
PDF File 800160.pdf 571 kB Shaun Ewing Sept 26, 1905 00:00
  • No labels
US-800160-A // Multiple switchboard for telephone-exchanges. // Milo G. Kellogg // Kellogg Switchboard & Supply
PDF File 592394.pdf 570 kB Shaun Ewing Oct 26, 1897 00:00
  • No labels
US-592394-A // Milo g // Milo G. Kellogg, Of Illinois // The Kellogg Switchboard And Supply Company, Of Same Place.
PDF File 1195590.pdf 570 kB Shaun Ewing Aug 22, 1916 00:00
  • No labels
US-1195590-A // kaisling // William Kaisling, Of Illinois // Kellogg Switchboard And Supply Company, Of Chicago, Illinois, A Corporation Of Illinois.
PDF File 2574904.pdf 569 kB Shaun Ewing Nov 13, 1951 00:00
  • No labels
US-2574904-A // Endless chain of counting relays // Bellamy John I. // Kellogg Switchboard & Supply
PDF File 736076.pdf 568 kB Shaun Ewing Aug 11, 1903 00:00
  • No labels
US-736076-A // Telephone-receiver. // William W. Dean // Kellogg Switchboard & Supply
PDF File 592333.pdf 568 kB Shaun Ewing Oct 26, 1897 00:00
  • No labels
US-592333-A // Milo g // Milo G. Kellogg, Of Illinois // The Kellogg Switchboard And Supply Company, Of Same Place.
  1. Prev
  2. 1
  3. …
  4. 33
  5. 34
  6. 35
  7. 36
  8. 37
  9. 38
  10. 39
  11. 40
  12. 41
  13. 42
  14. 43
  15. 44
  16. 45
  17. …
  18. 53
  19. Next