Name Size Creator Creation Date Labels Comment  
PDF File 2384515.pdf 484 kB Shaun Ewing Sept 11, 1945 00:00
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US-2384515-A // Signal recording apparatus // Wise Raleigh J. // Western Union Telegraph Co
PDF File 1967175.pdf 483 kB Shaun Ewing Jul 17, 1934 00:00
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US-1967175-A // Channel repeater for telegraph systems // Haglund Hakon H. // Western Union Telegraph Co
PDF File 1775686.pdf 482 kB Shaun Ewing Sept 16, 1930 00:00
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US-1775686-A // Measuring resistance of ground connections // Milnor Joseph W. // Western Union Telegraph Co
PDF File 1812824.pdf 480 kB Shaun Ewing Jun 30, 1931 00:00
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US-1812824-A // Telegraph repeater // Ferguson Cyrus C. // Western Union Telegraph Co
PDF File 2131434.pdf 479 kB Shaun Ewing Sept 27, 1938 00:00
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US-2131434-A // Sending channel assigner // Haglund Hakon H. // Western Union Telegraph Co
PDF File 1855380.pdf 478 kB Shaun Ewing Apr 26, 1932 00:00
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US-1855380-A // Corrector circuit for synchronous telegraph systems // Breyfogel Albert W. // Western Union Telegraph Co
PDF File 2246588.pdf 477 kB Shaun Ewing Jun 24, 1941 00:00
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US-2246588-A // Bearing structure // Harrall Edwin R. // Western Union Telegraph Co
PDF File 1811770.pdf 476 kB Shaun Ewing Jun 23, 1931 00:00
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US-1811770-A // Projecting apparatus // Wheeler Evan R. // Western Union Telegraph Co
PDF File 1780118.pdf 474 kB Shaun Ewing Oct 28, 1930 00:00
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US-1780118-A // Combined sectional operating-table unit and conveyer section // D'Humy Fernand E. // Western Union Telegraph Co
PDF File 2165773.pdf 473 kB Shaun Ewing Jul 11, 1939 00:00
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US-2165773-A // Insulator for communication systems // Wheeler Herbert H. ; Mcginnis Orris // Western Union Telegraph Co
PDF File 2346675.pdf 473 kB Shaun Ewing Apr 18, 1944 00:00
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US-2346675-A // Electrical recording stylus and method of making the same // Hackenberg John H. ; Wise Raleigh J. // Western Union Telegraph Co
PDF File 1636784.pdf 473 kB Shaun Ewing Jul 26, 1927 00:00
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US-1636784-A // Phase correction in synchronous telegraph systems // Parker Leighland F. ; Bramhall Fay B. // Western Union Telegraph Co
PDF File 1535627.pdf 470 kB Shaun Ewing Apr 28, 1925 00:00
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US-1535627-A // Telegraph system // Perkins Samuel W. // Western Union Telegraph Co
PDF File 1801348.pdf 469 kB Shaun Ewing Apr 21, 1931 00:00
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US-1801348-A // Automatic call signal and motor control for simplex printers // Hewitt Ernest W. // Western Union Telegraph Co
PDF File 319855.pdf 468 kB Shaun Ewing Jun 09, 1885 00:00
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US-319855-A // George b // Geoegb B. Scott, Op // Western Union Telegraph Co, Of New York, N. Y.
PDF File 2253187.pdf 468 kB Shaun Ewing Aug 19, 1941 00:00
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US-2253187-A // Testing gas for the detection of carbon monoxide // Mample Adolph Z. // Western Union Telegraph Co
PDF File 2106693.pdf 467 kB Shaun Ewing Jan 25, 1938 00:00
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US-2106693-A // Home record cut-out assembly // Franklin Lawrence W. // Western Union Telegraph Co
PDF File 1803304.pdf 466 kB Shaun Ewing Apr 28, 1931 00:00
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US-1803304-A // Call signal and motor control for simplex printers // Rothermel Samuel W. ; Hewitt Ernest W. // Western Union Telegraph Co
PDF File 2016203.pdf 464 kB Shaun Ewing Oct 01, 1935 00:00
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US-2016203-A // Carrier for pneumatic tube systems // Irving Ellery // Western Union Telegraph Co
PDF File 1800195.pdf 461 kB Shaun Ewing Apr 07, 1931 00:00
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US-1800195-A // Tape-feeding mechanism for telegraph printers // Porter James F. ; Franklin Laurence W. // Western Union Telegraph Co
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