Name Size Creator Creation Date Labels Comment  
PDF File 2394360.pdf 872 kB Shaun Ewing Feb 05, 1946 00:00
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US-2394360-A // Calling device // Bosh James E. // Kellogg Switchboard & Supply
PDF File 2394762.pdf 430 kB Shaun Ewing Feb 12, 1946 00:00
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US-2394762-A // Method of making elastic coil cables // Geraty Paul C. // Kellogg Switchboard & Supply ; Ralph D Collins
PDF File 2400530.pdf 5.87 MB Shaun Ewing May 21, 1946 00:00
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US-2400530-A // Selector switching system // Bellamy John I. // Kellogg Switchboard & Supply
PDF File 2404772.pdf 711 kB Shaun Ewing Jul 30, 1946 00:00
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US-2404772-A // Telephone transmitter // Brodie George H. // Kellogg Switchboard & Supply
PDF File 2420391.pdf 434 kB Shaun Ewing May 13, 1947 00:00
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US-2420391-A // Supporting device // Arnold Ralph J. // Kellogg Switchboard & Supply ; Ralph D Collins
PDF File 2421717.pdf 5.24 MB Shaun Ewing Jun 03, 1947 00:00
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US-2421717-A // Automatic telephone system // Saunders Norman H. // Kellogg Switchboard & Supply
PDF File 2424426.pdf 447 kB Shaun Ewing Jul 22, 1947 00:00
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US-2424426-A // Coiling means for making elastic coil structures // Arnold Ralph J. // Kellogg Switchboard & Supply ; Ralph D Collins
PDF File 2427187.pdf 534 kB Shaun Ewing Sept 09, 1947 00:00
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US-2427187-A // Listening and ringing key for telephone switchboards // Bosh James E. // Kellogg Switchboard & Supply
PDF File 2427650.pdf 9.40 MB Shaun Ewing Sept 23, 1947 00:00
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US-2427650-A // Multiexchange community automatic telephone system // Bakker Pier // Kellogg Switchboard & Supply
PDF File 2428593.pdf 478 kB Shaun Ewing Oct 07, 1947 00:00
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US-2428593-A // Telephone substation set // Teague Walter D. ; Jr. Walter D. Teague, // Kellogg Switchboard & Supply
PDF File 2441001.pdf 2.10 MB Shaun Ewing May 04, 1948 00:00
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US-2441001-A // Electromagnetic counting device // Bellamy John I. // Kellogg Switchboard & Supply
PDF File 2441041.pdf 373 kB Shaun Ewing May 04, 1948 00:00
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US-2441041-A // Two-step relay // Staszak Michael B. // Kellogg Switchboard & Supply
PDF File 2442947.pdf 2.84 MB Shaun Ewing Jun 08, 1948 00:00
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US-2442947-A // Code-call system // Blyholder Orlando // Kellogg Switchboard & Supply
PDF File 2443945.pdf 4.92 MB Shaun Ewing Jun 22, 1948 00:00
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US-2443945-A // Revertive ringing automatic telephone system // Bellamy John I. // Kellogg Switchboard & Supply
PDF File 2452431.pdf 574 kB Shaun Ewing Oct 26, 1948 00:00
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US-2452431-A // Production of vulcanizable elastic coil cables having reversingly coiled portions // Collins Ralph D. ; Drigot William J. // Kellogg Switchboard & Supply
PDF File 2452432.pdf 327 kB Shaun Ewing Oct 26, 1948 00:00
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US-2452432-A // Method of making elastic coil structures with uncoiled ends // Collins Ralph D. // Kellogg Switchboard & Supply
PDF File 2452433.pdf 352 kB Shaun Ewing Oct 26, 1948 00:00
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US-2452433-A // Method and apparatus for making elastic coil cables with longitudinal ends // Collins Ralph D. // Kellogg Switchboard & Supply
PDF File 2452434.pdf 455 kB Shaun Ewing Oct 26, 1948 00:00
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US-2452434-A // Apparatus for making elastic coil structures with longitudinal ends // Crehan William J. ; Arnold Ralph J. // Kellogg Switchboard & Supply ; Ralph D Collins
PDF File 2452435.pdf 638 kB Shaun Ewing Oct 26, 1948 00:00
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US-2452435-A // Apparatus for producing elastic coils with connecting tails // Arnold Ralph J. ; Macdonald William D. ; Collins Ralph D. // Kellogg Switchboard & Supply ; Ralph D Collins
PDF File 2464371.pdf 1.51 MB Shaun Ewing Mar 15, 1949 00:00
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US-2464371-A // Telegraph switching system // Blyholder Orlando // Kellogg Switchboard & Supply
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