Name Size Creator Creation Date Labels Comment  
PDF File 867349.pdf 550 kB Shaun Ewing Oct 01, 1907 00:00
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US-867349-A // Testing system for telephone-lines. // William W. Dean // Kellogg Switchboard & Supply
PDF File 912397.pdf 549 kB Shaun Ewing Feb 16, 1909 00:00
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US-912397-A // Check-controlled device. // Kempster B. Miller // Kellogg Switchboard & Supply
PDF File 1552709.pdf 548 kB Shaun Ewing Sept 08, 1925 00:00
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US-1552709-A // Telephone system // Kellogg Leroy D. // Kellogg Switchboard & Supply
PDF File 784872.pdf 548 kB Shaun Ewing Mar 14, 1905 00:00
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US-784872-A // Relay. // Ray H. Manson // Kellogg Switchboard & Supply
PDF File 916235.pdf 545 kB Shaun Ewing Mar 23, 1909 00:00
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US-916235-A // Subscriber's-telephone instrument. // Alfred H. Weiss // Kellogg Switchboard & Supply
PDF File 2185521.pdf 543 kB Shaun Ewing Jan 02, 1940 00:00
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US-2185521-A // Telephone system // Robison Daniel B. // Kellogg Switchboard & Supply
PDF File 1652645.pdf 542 kB Shaun Ewing Dec 13, 1927 00:00
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US-1652645-A // Substation circuit // Shull William G. // Kellogg Switchboard & Supply
PDF File 976962.pdf 541 kB Shaun Ewing Nov 29, 1910 00:00
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US-976962-A // Wall set. // Alfred H. Weiss // Kellogg Switchboard & Supply
PDF File 717300.pdf 539 kB Shaun Ewing Dec 30, 1902 00:00
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US-717300-A // Current-protective device. // William A. Taylor // Kellogg Switchboard & Supply
PDF File 1173095.pdf 538 kB Shaun Ewing Feb 22, 1916 00:00
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US-1173095-A // Party-line key. // Alva J. Carter // Kellogg Switchboard & Supply
PDF File 755630.pdf 537 kB Shaun Ewing Mar 29, 1904 00:00
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US-755630-A // Bell. // William W. Dean // Kellogg Switchboard & Supply
PDF File 1469208.pdf 536 kB Shaun Ewing Oct 02, 1923 00:00
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US-1469208-A // Switchboard lamp // Bohlman Ernest A. // Kellogg Switchboard & Supply
PDF File 592344.pdf 536 kB Shaun Ewing Oct 26, 1897 00:00
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US-592344-A // Milo g // Milo G. Kellogg, Op Illinois // The Kellogg Switchboard And Supply Company, Of Same Place.
PDF File 1778896.pdf 535 kB Shaun Ewing Oct 21, 1930 00:00
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US-1778896-A // Terminal cap // Grout Martin B. // Kellogg Switchboard & Supply
PDF File 705092.pdf 535 kB Shaun Ewing Jul 22, 1902 00:00
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US-705092-A // Supervisory relay. // William Kaisling // Kellogg Switchboard & Supply
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 1179108.pdf 534 kB Shaun Ewing Apr 11, 1916 00:00
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US-1179108-A // Indicating-switch. // William Kaisling // Kellogg Switchboard & Supply
PDF File 832121.pdf 532 kB Shaun Ewing Oct 02, 1906 00:00
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US-832121-A // Telephone system. // William W. Dean // Kellogg Switchboard & Supply
PDF File 1723378.pdf 531 kB Shaun Ewing Aug 06, 1929 00:00
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US-1723378-A // Distributor // Sauer Louis B. ; Yanochowski George A. // Kellogg Switchboard & Supply
PDF File 697515.pdf 529 kB Shaun Ewing Apr 15, 1902 00:00
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US-697515-A // Combined jack and drop. // Kempster B. Miller // Kellogg Switchboard & Supply
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