Name Size Creator Creation Date Labels Comment  
PDF File 1353060.pdf 425 kB Shaun Ewing Sept 14, 1920 00:00
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US-1353060-A // Voltage-regulator for direct and alternating current generators // Milnor Joseph W. // Western Union Telegraph Co
PDF File 2023952.pdf 425 kB Shaun Ewing Dec 10, 1935 00:00
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US-2023952-A // Selective market system // Dirkes Robert F. ; Marsh Morris R. // Western Union Telegraph Co
PDF File 1856331.pdf 424 kB Shaun Ewing May 03, 1932 00:00
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US-1856331-A // Corrector system for synchronous telegraph apparatus // Haglund Hakon H. // Western Union Telegraph Co
PDF File 1620152.pdf 424 kB Shaun Ewing Mar 08, 1927 00:00
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US-1620152-A // Method of preserving wood and solutions therefor // Curtin Leo P. // Western Union Telegraph Co
PDF File 1912343.pdf 424 kB Shaun Ewing May 30, 1933 00:00
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US-1912343-A // Tuning fork temperature compensation and frequency adjustment // Buckingham William D. // Western Union Telegraph Co
PDF File 2279242.pdf 423 kB Shaun Ewing Apr 07, 1942 00:00
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US-2279242-A // Facsimile signal inverter // O'Brien Frederic L. // Western Union Telegraph Co
PDF File 1805374.pdf 422 kB Shaun Ewing May 12, 1931 00:00
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US-1805374-A // Distributor-transmitter for simplex telegraph circuits // Rothermel Samuel W. // Western Union Telegraph Co
PDF File 2264683.pdf 419 kB Shaun Ewing Dec 02, 1941 00:00
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US-2264683-A // Method of and means for neutralizing electrostatic charges on moving tapes and the like // Smith Donald W. // Western Union Telegraph Co
PDF File 2009973.pdf 418 kB Shaun Ewing Jul 30, 1935 00:00
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US-2009973-A // Protecting electrical instruments from excessive electrical surges // Nelson Crescent F. // Western Union Telegraph Co
PDF File 1969073.pdf 417 kB Shaun Ewing Aug 07, 1934 00:00
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US-1969073-A // Mechanism for straightening sheet material // Hamre John A. // Western Union Telegraph Co
PDF File 1415382.pdf 415 kB Shaun Ewing May 09, 1922 00:00
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US-1415382-A // Amplifier // Milnor Joseph W. // Western Union Telegraph Co
PDF File 258366.pdf 415 kB Shaun Ewing May 23, 1882 00:00
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US-258366-A // Charles l // Charles L. Buckingham, Of New Jersey // Western Union Telegraph Co, Op New York, N. Y.
PDF File 1754628.pdf 412 kB Shaun Ewing Apr 15, 1930 00:00
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US-1754628-A // Locating faults on messenger-call circuits // Janson George W. // Western Union Telegraph Co
PDF File 1831700.pdf 412 kB Shaun Ewing Nov 10, 1931 00:00
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US-1831700-A // Message copyholder and gumming desk for printing telegraph machines // Blanchard Rolla F. ; Porter James F. ; Marx George // Western Union Telegraph Co
PDF File 2416285.pdf 407 kB Shaun Ewing Feb 25, 1947 00:00
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US-2416285-A // Lamp base and socket // Buckingham William D. ; Bedell Elmer E. // Western Union Telegraph Co
PDF File 2106691.pdf 405 kB Shaun Ewing Jan 25, 1938 00:00
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US-2106691-A // Printing telegraph system // Demonet Eugene A. // Western Union Telegraph Co
PDF File 1880723.pdf 405 kB Shaun Ewing Oct 04, 1932 00:00
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US-1880723-A // Message distributing system for simplex printer concentration units // Blanton William B. // Western Union Telegraph Co
PDF File 1918199.pdf 404 kB Shaun Ewing Jul 11, 1933 00:00
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US-1918199-A // Electric switch // Ward Harley M. // Western Union Telegraph Co
PDF File 1881758.pdf 403 kB Shaun Ewing Oct 11, 1932 00:00
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US-1881758-A // Two-channel fork-controlled receiving and repeating apparatus for telegraph systems // Longland Herbert A. // Western Union Telegraph Co
PDF File 1786343.pdf 400 kB Shaun Ewing Dec 23, 1930 00:00
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US-1786343-A // Universal drag conveyer // Griffith Francis // Western Union Telegraph Co
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