Name Size Creator Creation Date Labels Comment  
PDF File 1000902.pdf 700 kB Shaun Ewing Aug 15, 1911 00:00
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US-1000902-A // Calling device for electrical exchange systems. // Alfred H. Dyson // Kellogg Switchboard & Supply
PDF File 1001723.pdf 520 kB Shaun Ewing Aug 29, 1911 00:00
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US-1001723-A // Telephone system. // Charles S. Winston // Kellogg Switchboard & Supply
PDF File 1002891.pdf 561 kB Shaun Ewing Sept 12, 1911 00:00
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US-1002891-A // Telephone system. // Charles S. Winston // Kellogg Switchboard & Supply
PDF File 1005393.pdf 940 kB Shaun Ewing Oct 10, 1911 00:00
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US-1005393-A // Telephone system. // Charles S. Winston ; Edwin H. Rupe // Kellogg Switchboard & Supply
PDF File 1005910.pdf 376 kB Shaun Ewing Oct 17, 1911 00:00
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US-1005910-A // Key-switch. // Alfred H. Weiss // Kellogg Switchboard & Supply
PDF File 1006615.pdf 641 kB Shaun Ewing Oct 24, 1911 00:00
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US-1006615-A // Central-energy telephone system. // Charles S. Winston // Kellogg Switchboard & Supply
PDF File 1008232.pdf 884 kB Shaun Ewing Nov 07, 1911 00:00
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US-1008232-A // Telephone trunking system. // Charles S. Winston // Kellogg Switchboard & Supply
PDF File 1009190.pdf 697 kB Shaun Ewing Nov 21, 1911 00:00
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US-1009190-A // Telephone trunking system. // Charles A. Simpson // Kellogg Switchboard & Supply
PDF File 1009813.pdf 2.36 MB Shaun Ewing Nov 28, 1911 00:00
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US-1009813-A // Telephone system. // Harry G. Webster // Kellogg Switchboard & Supply
PDF File 1010471.pdf 677 kB Shaun Ewing Dec 05, 1911 00:00
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US-1010471-A // Telephone system. // Charles S. Winston // Kellogg Switchboard & Supply
PDF File 1011439.pdf 292 kB Shaun Ewing Dec 12, 1911 00:00
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US-1011439-A // Magnet-terminal. // William Kaisling // Kellogg Switchboard & Supply
PDF File 1012780.pdf 698 kB Shaun Ewing Dec 26, 1911 00:00
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US-1012780-A // Service-meter system. // Charles S. Winston // Kellogg Switchboard & Supply
PDF File 1013865.pdf 1.34 MB Shaun Ewing Jan 09, 1912 00:00
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US-1013865-A // Telephone system. // William W. Dean // Kellogg Switchboard & Supply
PDF File 1014780.pdf 333 kB Shaun Ewing Jan 16, 1912 00:00
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US-1014780-A // Spool-head. // Charles H. Smith // Kellogg Switchboard & Supply
PDF File 1016567.pdf 369 kB Shaun Ewing Feb 06, 1912 00:00
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US-1016567-A // Spring-armature relay. // William Kaisling // Kellogg Switchboard & Supply
PDF File 1017085.pdf 657 kB Shaun Ewing Feb 13, 1912 00:00
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US-1017085-A // Telephone system. // Fred M. Davis // Kellogg Switchboard & Supply
PDF File 1019060.pdf 593 kB Shaun Ewing Mar 05, 1912 00:00
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US-1019060-A // Circuit-breaker. // Albion D. T. Libby // Kellogg Switchboard & Supply
PDF File 1022522.pdf 654 kB Shaun Ewing Apr 09, 1912 00:00
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US-1022522-A // Telephone-exchange system. // Harry G. Webster // Kellogg Switchboard & Supply
PDF File 1023185.pdf 390 kB Shaun Ewing Apr 16, 1912 00:00
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US-1023185-A // Telephone-exchange system. // Harry G. Webster // Kellogg Switchboard & Supply
PDF File 1023900.pdf 965 kB Shaun Ewing Apr 23, 1912 00:00
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US-1023900-A // Telephone system. // Harry G. Webster // Kellogg Switchboard & Supply
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