Name Size Creator Creation Date Labels Comment  
PDF File 1447748.pdf 745 kB Shaun Ewing Mar 06, 1923 00:00
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US-1447748-A // Method of and apparatus for operating synchronous telegraph systems // Benjamin George R. // Western Union Telegraph Co
PDF File 1447747.pdf 629 kB Shaun Ewing Mar 06, 1923 00:00
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US-1447747-A // Method of and apparatus for operating synchronous telegraph systems // Benjamin George R. // Western Union Telegraph Co
PDF File 1439633.pdf 701 kB Shaun Ewing Dec 19, 1922 00:00
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US-1439633-A // Method of and apparatus for telegraphic transmission // Milnor Joseph W. // Western Union Telegraph Co
PDF File 1431865.pdf 774 kB Shaun Ewing Oct 10, 1922 00:00
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US-1431865-A // Cable telegraphy // Angel Herbert // Western Union Telegraph Co
PDF File 1416642.pdf 341 kB Shaun Ewing May 16, 1922 00:00
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US-1416642-A // Call-box contact mechanism // Janson George W. // Western Union Telegraph Co
PDF File 1416594.pdf 389 kB Shaun Ewing May 16, 1922 00:00
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US-1416594-A // Call-box transmitter // Atherton Albert // 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 1401917.pdf 1.22 MB Shaun Ewing Dec 27, 1921 00:00
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US-1401917-A // Tape-transmitter // Murray Donald // Western Union Telegraph Co
PDF File 1394439.pdf 1.07 MB Shaun Ewing Oct 18, 1921 00:00
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US-1394439-A // Code-transposing apparatus for telegraph systems // Murray Donald // Western Union Telegraph Co
PDF File 1378712.pdf 431 kB Shaun Ewing May 17, 1921 00:00
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US-1378712-A // Amplifier // Milnor Joseph W. // Western Union Telegraph Co
PDF File 1370402.pdf 1.45 MB Shaun Ewing Mar 01, 1921 00:00
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US-1370402-A // Automatic telegraph system // Benjamin George R. // Western Union Telegraph Co
PDF File 1355085.pdf 251 kB Shaun Ewing Oct 05, 1920 00:00
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US-1355085-A // Differentially-wound electromagnet // Beasley Harry K. // Western Union Telegraph Co
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 1352308.pdf 835 kB Shaun Ewing Sept 07, 1920 00:00
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US-1352308-A // Paper-feed mechanism for printing-telegraphs, &c. // Murray Donald // Western Union Telegraph Co
PDF File 1350280.pdf 225 kB Shaun Ewing Aug 17, 1920 00:00
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US-1350280-A // Adjustable rheostat // Howe Paul J. // Western Union Telegraph Co
PDF File 1350279.pdf 260 kB Shaun Ewing Aug 17, 1920 00:00
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US-1350279-A // Adjustable condenser // Howe Paul J. // Western Union Telegraph Co
PDF File 1324536.pdf 313 kB Shaun Ewing Dec 09, 1919 00:00
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US-1324536-A // Alternating-current electromagnetic instrument // Harry K. Beasley, Oe New York // Western Union Telegraph Co, Oe New York, N. Y., A Corporation Oe New York.
PDF File 1298622.pdf 3.87 MB Shaun Ewing Mar 25, 1919 00:00
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US-1298622-A // Means for synchronizing rotary devices. // George M. Yorke ; George R. Benjamin // Western Union Telegraph Co
PDF File 1298440.pdf 863 kB Shaun Ewing Mar 25, 1919 00:00
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US-1298440-A // Automatic transmitter. // George R. Benjamin // Western Union Telegraph Co
PDF File 1284219.pdf 373 kB Shaun Ewing Nov 12, 1918 00:00
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US-1284219-A // Starting device for la cour motors. // George R. Benjamin // Western Union Telegraph Co
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