Name Size Creator Creation Date Labels Comment  
PDF File 2040311.pdf 249 kB Shaun Ewing May 12, 1936 00:00
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US-2040311-A // Telephone desk set mechanism // Horn Royal ; Humphreys Joseph // Kellogg Switchboard & Supply
PDF File 2050291.pdf 847 kB Shaun Ewing Aug 11, 1936 00:00
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US-2050291-A // Radio receiving system // Eaton George R. ; Armstrong Herbert M. // Kellogg Switchboard & Supply
PDF File 2050292.pdf 950 kB Shaun Ewing Aug 11, 1936 00:00
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US-2050292-A // Telephone repeater system // Eaton George R. // Kellogg Switchboard & Supply
PDF File 2054702.pdf 966 kB Shaun Ewing Sept 15, 1936 00:00
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US-2054702-A // Telephone system // Kiner Glenn // Kellogg Switchboard & Supply
PDF File 2056268.pdf 340 kB Shaun Ewing Oct 06, 1936 00:00
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US-2056268-A // Socket // Grout Martin B. // Kellogg Switchboard & Supply
PDF File 2062998.pdf 258 kB Shaun Ewing Dec 01, 1936 00:00
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US-2062998-A // Scraping tool // Peterson Ruben O. // Kellogg Switchboard & Supply
PDF File 2093700.pdf 408 kB Shaun Ewing Sept 21, 1937 00:00
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US-2093700-A // Ignition apparatus // Wallenta Bernard H. A. // Kellogg Switchboard & Supply
PDF File 2116320.pdf 160 kB Shaun Ewing May 03, 1938 00:00
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US-2116320-A // Bell // Miller Carl M. // Kellogg Switchboard & Supply
PDF File 2121083.pdf 613 kB Shaun Ewing Jun 21, 1938 00:00
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US-2121083-A // Refrigerating system // Kellogg Leroy D. // Kellogg Switchboard & Supply
PDF File 2127343.pdf 345 kB Shaun Ewing Aug 16, 1938 00:00
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US-2127343-A // Annunciator system // Parlett Albert // Kellogg Switchboard & Supply
PDF File 2146189.pdf 714 kB Shaun Ewing Feb 07, 1939 00:00
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US-2146189-A // Switch synchronizing system // Kiner Glenn // Kellogg Switchboard & Supply
PDF File 2148075.pdf 1.41 MB Shaun Ewing Feb 21, 1939 00:00
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US-2148075-A // Liquid level indicating device // Kiner Glenn // Kellogg Switchboard & Supply
PDF File 2149753.pdf 1.73 MB Shaun Ewing Mar 07, 1939 00:00
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US-2149753-A // Composite selector circuit // Wallace Bert A. // Kellogg Switchboard & Supply
PDF File 2156842.pdf 390 kB Shaun Ewing May 02, 1939 00:00
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US-2156842-A // Bell // Eaton George R. // Kellogg Switchboard & Supply
PDF File 2158305.pdf 276 kB Shaun Ewing May 16, 1939 00:00
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US-2158305-A // Connector block // Rose Morris ; Judsen Nils A. // Kellogg Switchboard & Supply
PDF File 2184387.pdf 858 kB Shaun Ewing Dec 26, 1939 00:00
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US-2184387-A // Station selector system // Kiner Glenn // 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 2186246.pdf 1.54 MB Shaun Ewing Jan 09, 1940 00:00
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US-2186246-A // Communication system // Kiner Glenn // Kellogg Switchboard & Supply
PDF File 2187186.pdf 1.81 MB Shaun Ewing Jan 16, 1940 00:00
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US-2187186-A // Telephone system // Wallace Bert A. // Kellogg Switchboard & Supply
PDF File 2192421.pdf 1.53 MB Shaun Ewing Mar 05, 1940 00:00
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US-2192421-A // Remote reading register // Wallace Bert A. // Kellogg Switchboard & Supply
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