Name Size Creator Creation Date Labels Comment  
PDF File 1910593.pdf 242 kB Shaun Ewing May 23, 1933 00:00
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US-1910593-A // Process of forming oxalate coatings on iron and steel articles // Curtin Leo P. // Western Union Telegraph Co
PDF File 1910122.pdf 652 kB Shaun Ewing May 23, 1933 00:00
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US-1910122-A // Ticker system // Myer Percy L. ; Steeneck Robert // Western Union Telegraph Co
PDF File 1909201.pdf 554 kB Shaun Ewing May 16, 1933 00:00
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US-1909201-A // Printing telegraph system // Long James W. ; Steeneck Robert // Western Union Telegraph Co
PDF File 1904265.pdf 704 kB Shaun Ewing Apr 18, 1933 00:00
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US-1904265-A // Automatic operator indicator for busy lines at central offices // Blanton William B. // Western Union Telegraph Co
PDF File 1902170.pdf 979 kB Shaun Ewing Mar 21, 1933 00:00
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US-1902170-A // Dividing received intelligence into two or more groups // Kimball Vernon R. // Western Union Telegraph Co
PDF File 1901318.pdf 862 kB Shaun Ewing Mar 14, 1933 00:00
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US-1901318-A // Means for balancing cables equipped with a long sea-earth // Milnor Joseph W. // Western Union Telegraph Co
PDF File 1901296.pdf 1.75 MB Shaun Ewing Mar 14, 1933 00:00
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US-1901296-A // Multiplex telegraph system // Haglund Hakon H. // Western Union Telegraph Co
PDF File 1899674.pdf 154 kB Shaun Ewing Feb 28, 1933 00:00
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US-1899674-A // Process for the production of ferric oxalate // Curtin Leo P. // Western Union Telegraph Co
PDF File 1895569.pdf 294 kB Shaun Ewing Jan 31, 1933 00:00
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US-1895569-A // Production of protective coatings on iron and steel articles // Curtin Leo P. ; Kline Bernard L. // Western Union Telegraph Co
PDF File 1895568.pdf 233 kB Shaun Ewing Jan 31, 1933 00:00
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US-1895568-A // Rust proofing iron and steel articles // Curtin Leo P. ; Kline Bernard L. // Western Union Telegraph Co
PDF File 1883102.pdf 560 kB Shaun Ewing Oct 18, 1932 00:00
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US-1883102-A // Automatic rider circuits // Teter Paul E. // Western Union Telegraph Co
PDF File 1882818.pdf 672 kB Shaun Ewing Oct 18, 1932 00:00
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US-1882818-A // Direction control switch for transmission over submarine cables // Haglund Hakon H. // Western Union Telegraph Co
PDF File 1882817.pdf 844 kB Shaun Ewing Oct 18, 1932 00:00
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US-1882817-A // Telegraph carrier system // Haglund Hakon H. // Western Union Telegraph Co
PDF File 1881787.pdf 281 kB Shaun Ewing Oct 11, 1932 00:00
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US-1881787-A // Method of perforating the lead sheathing of conductor cables // Mample Adolph Z. ; Hobert Edward J. // 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 1881757.pdf 1.48 MB Shaun Ewing Oct 11, 1932 00:00
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US-1881757-A // Telegraph transmitting apparatus // Long James W. ; Steeneck Robert // Western Union Telegraph Co
PDF File 1881739.pdf 453 kB Shaun Ewing Oct 11, 1932 00:00
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US-1881739-A // Concentration circuit for simplex printers // Light George G. // Western Union Telegraph Co
PDF File 1881622.pdf 1.66 MB Shaun Ewing Oct 11, 1932 00:00
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US-1881622-A // System for testing and recording the condition of clock setting circuits // Janson George W. ; Callahan William F. // Western Union Telegraph Co
PDF File 1881585.pdf 1.87 MB Shaun Ewing Oct 11, 1932 00:00
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US-1881585-A // Quotation board printing unit // Hoover Ray ; Wheeler Evan R. // Western Union Telegraph Co
PDF File 1881458.pdf 681 kB Shaun Ewing Oct 11, 1932 00:00
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US-1881458-A // Telegraph receiving or repeating circuit // Frost Albert E. // Western Union Telegraph Co
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