Name Size Creator Creation Date Labels Comment  
PDF File 1138224.pdf 330 kB Shaun Ewing May 04, 1915 00:00
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US-1138224-A // Electrical-switch key. // William Kaisling // Kellogg Switchboard & Supply
PDF File 717429.pdf 329 kB Shaun Ewing Dec 30, 1902 00:00
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US-717429-A // Telephone-receiver. // Kempster B. Miller // Kellogg Switchboard & Supply
PDF File 995255.pdf 329 kB Shaun Ewing Jun 13, 1911 00:00
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US-995255-A // Electromagnet. // William Kaisling // Kellogg Switchboard & Supply
PDF File 1183405.pdf 329 kB Shaun Ewing May 16, 1916 00:00
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US-1183405-A // Relay. // Fred Schoenwolf // Kellogg Switchboard & Supply
PDF File 1247916.pdf 328 kB Shaun Ewing Nov 27, 1917 00:00
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US-1247916-A // Connection-terminal. // Alfred H. Weiss // Kellogg Switchboard & Supply
PDF File 2517992.pdf 328 kB Shaun Ewing Aug 08, 1950 00:00
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US-2517992-A // Telephone connecting block // Erickson Clifford E. // Kellogg Switchboard & Supply
PDF File 1269005.pdf 328 kB Shaun Ewing Jun 11, 1918 00:00
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US-1269005-A // Relay-buzzer. // Fred Schoenwolf // Kellogg Switchboard & Supply
PDF File 1132249.pdf 328 kB Shaun Ewing Mar 16, 1915 00:00
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US-1132249-A // Signaling device for party telephone-lines. // Lawrence Ericson // 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 1209266.pdf 325 kB Shaun Ewing Dec 19, 1916 00:00
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US-1209266-A // Repeating coil. // Hiram D. Currier // Kellogg Switchboard & Supply
PDF File 1228778.pdf 322 kB Shaun Ewing Jun 05, 1917 00:00
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US-1228778-A // Knife-switch relay. // William Kaisling // Kellogg Switchboard & Supply
PDF File 738545.pdf 322 kB Shaun Ewing Sept 08, 1903 00:00
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US-738545-A // Cord-tip. // William Kaisling // Kellogg Switchboard & Supply
PDF File 2339919.pdf 322 kB Shaun Ewing Jan 25, 1944 00:00
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US-2339919-A // Dial with magnetic governor // Eaton George R. // Kellogg Switchboard & Supply
PDF File 1746443.pdf 320 kB Shaun Ewing Feb 11, 1930 00:00
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US-1746443-A // Receiving circuit // Potter Earl F. // Kellogg Switchboard & Supply
PDF File 1200319.pdf 320 kB Shaun Ewing Oct 03, 1916 00:00
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US-1200319-A // Switchboard-cord. // Hiram D. Currier // Kellogg Switchboard & Supply
PDF File 1805794.pdf 319 kB Shaun Ewing May 19, 1931 00:00
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US-1805794-A // Audion tube // Yanochowski George A. // Kellogg Switchboard & Supply
PDF File 1250589.pdf 318 kB Shaun Ewing Dec 18, 1917 00:00
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US-1250589-A // Signaling-horn. // William Kaisling // Kellogg Switchboard & Supply
PDF File 2315020.pdf 317 kB Shaun Ewing Mar 30, 1943 00:00
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US-2315020-A // Gang relay // Saunders Norman H. ; Judsen Nils A. // Kellogg Switchboard & Supply
PDF File 1671760.pdf 316 kB Shaun Ewing May 29, 1928 00:00
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US-1671760-A // Socket // Bohlman Ernest A. ; Shannon John D. // Kellogg Switchboard & Supply
PDF File 1567105.pdf 316 kB Shaun Ewing Dec 29, 1925 00:00
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US-1567105-A // Head receiver set // Bohlman Ernest A. // Kellogg Switchboard & Supply
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