Name Size Creator Creation Date Labels Comment  
PDF File 2194189.pdf 701 kB Shaun Ewing Mar 19, 1940 00:00
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US-2194189-A // Pole line insulator // Wheeler Herbert H. ; Mcginnis Orris ; Thordarson William // Western Union Telegraph Co
PDF File 2193902.pdf 885 kB Shaun Ewing Mar 19, 1940 00:00
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US-2193902-A // Ocean cable carrier system // Haglund Hakon H. // Western Union Telegraph Co
PDF File 2193812.pdf 1.26 MB Shaun Ewing Mar 19, 1940 00:00
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US-2193812-A // Telegraph exchange system // Blanton William B. // Western Union Telegraph Co
PDF File 2193811.pdf 2.52 MB Shaun Ewing Mar 19, 1940 00:00
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US-2193811-A // Signaling system and apparatus // Blanchard Rolla F. ; Blanton William B. ; Browne Harry L. // Western Union Telegraph Co
PDF File 2193810.pdf 2.71 MB Shaun Ewing Mar 19, 1940 00:00
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US-2193810-A // Telegraph exchange system // Wheeler Evan R. ; Hoover Ray ; Dirkes Robert F. // Western Union Telegraph Co
PDF File 2193809.pdf 3.77 MB Shaun Ewing Mar 19, 1940 00:00
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US-2193809-A // Signaling system and apparatus therefor // Dirkes Robert F. ; Hoover Ray ; Wheeler Evan R. // Western Union Telegraph Co
PDF File 2189660.pdf 329 kB Shaun Ewing Feb 06, 1940 00:00
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US-2189660-A // Power level indicator // Boudreau Anthony P. J. // Western Union Telegraph Co
PDF File 2187360.pdf 1.51 MB Shaun Ewing Jan 16, 1940 00:00
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US-2187360-A // Telegraph system and apparatus // Myer Percy L. ; Wheeler Evan R. // Western Union Telegraph Co
PDF File 2186899.pdf 920 kB Shaun Ewing Jan 09, 1940 00:00
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US-2186899-A // Telegraph system // D'Humy Fernand E. ; Franklin Lawrence W. // Western Union Telegraph Co
PDF File 2186898.pdf 984 kB Shaun Ewing Jan 09, 1940 00:00
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US-2186898-A // Telegraph storage system // D'Humy Fernand E. ; Franklin Lawrence W. // Western Union Telegraph Co
PDF File 2186897.pdf 631 kB Shaun Ewing Jan 09, 1940 00:00
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US-2186897-A // Telautograph system // D'Humy Fernand E. ; Franklin Lawrence W. // Western Union Telegraph Co
PDF File 2186896.pdf 976 kB Shaun Ewing Jan 09, 1940 00:00
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US-2186896-A // Telegraph system // D'Humy Fernand E. ; Franklin Lawrence W. // Western Union Telegraph Co
PDF File 2186895.pdf 1.30 MB Shaun Ewing Jan 09, 1940 00:00
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US-2186895-A // Telegraph system // D'Humy Fernand E. ; Franklin Lawrence W. // Western Union Telegraph Co
PDF File 2186006.pdf 1.89 MB Shaun Ewing Jan 09, 1940 00:00
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US-2186006-A // Balancing duplex circuit // Buckingham William D. // Western Union Telegraph Co
PDF File 2181533.pdf 425 kB Shaun Ewing Nov 28, 1939 00:00
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US-2181533-A // Method of and means for recording signals electrically // Kline Bernard L. ; Parrott Robert D. ; Erickson George L. // Western Union Telegraph Co
PDF File 2179690.pdf 546 kB Shaun Ewing Nov 14, 1939 00:00
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US-2179690-A // Regenerative repeater for telegraph systems // Erickson George L. ; Teter Paul E. // Western Union Telegraph Co
PDF File 2176901.pdf 1.04 MB Shaun Ewing Oct 24, 1939 00:00
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US-2176901-A // Multichannel telegraph system // Jr. Philo Holcomb, ; Boggs Albert // Western Union Telegraph Co
PDF File 2176442.pdf 298 kB Shaun Ewing Oct 17, 1939 00:00
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US-2176442-A // Signal producing means // Wise Raleigh J. // Western Union Telegraph Co
PDF File 2176065.pdf 866 kB Shaun Ewing Oct 17, 1939 00:00
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US-2176065-A // Telegraph system // D'Humy Fernand E. ; Franklin Lawrence W. // Western Union Telegraph Co
PDF File 2174731.pdf 3.08 MB Shaun Ewing Oct 03, 1939 00:00
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US-2174731-A // Combined telegraph printer and perforator // Dirkes Robert F. ; Wheeler Evan R. // Western Union Telegraph Co
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