Name Size Creator Creation Date Labels Comment  
PDF File 1979284.pdf 315 kB Shaun Ewing Nov 06, 1934 00:00
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US-1979284-A // Electrical protective system // Rovere Lewis H. ; Estes Phillip H. // Western Union Telegraph Co
PDF File 1729053.pdf 314 kB Shaun Ewing Sept 24, 1929 00:00
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US-1729053-A // Electrical protective device // Rovere Lewis H. ; Mott Everett V. ; Ayers Robert C. // Western Union Telegraph Co
PDF File 1466623.pdf 314 kB Shaun Ewing Aug 28, 1923 00:00
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US-1466623-A // Adjustable-vibration tuning fork // Houghtaling Walter A. // 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 304007.pdf 312 kB Shaun Ewing Aug 26, 1884 00:00
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US-304007-A // Adolphus a // Adolpiius A. Kxudson, Op // Western Union Telegraph Co, Op New Yopjv, N. Y.
PDF File 480567.pdf 310 kB Shaun Ewing Aug 09, 1892 00:00
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US-480567-A // Thomas a // Thomas A. Edison, Of New Jersey Assignor By Mesne // Western Union Telegraph Co.
PDF File 198088.pdf 306 kB Shaun Ewing Dec 11, 1877 00:00
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US-198088-A // Improvement in telephonic telegraphs // Thomas A. Edison, Of New Jeeset // The Westeen Union Teleg-baph Company.
PDF File 1743000.pdf 306 kB Shaun Ewing Jan 07, 1930 00:00
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US-1743000-A // Desk clip for message blanks // Meader Ralph I. // Western Union Telegraph Co
PDF File 2297851.pdf 305 kB Shaun Ewing Oct 06, 1942 00:00
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US-2297851-A // Illuminated display device // Jr. Clement H. Wyss, // Western Union Telegraph Co
PDF File 2248852.pdf 304 kB Shaun Ewing Jul 08, 1941 00:00
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US-2248852-A // Phase inverter for push-pull amplifiers // Cannon William D. // Western Union Telegraph Co
PDF File 2391912.pdf 303 kB Shaun Ewing Jan 01, 1946 00:00
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US-2391912-A // Electrical recording // Magee Bruce V. // Western Union Telegraph Co
PDF File 1766919.pdf 302 kB Shaun Ewing Jun 24, 1930 00:00
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US-1766919-A // Duplex telegraph system // Milnor Joseph W. ; Cannon William D. // Western Union Telegraph Co
PDF File 198087.pdf 300 kB Shaun Ewing Dec 11, 1877 00:00
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US-198087-A // Improvement in telephonic telegraphs // Thomas A. Edison, Op New Jersey // 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 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 2435222.pdf 292 kB Shaun Ewing Feb 03, 1948 00:00
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US-2435222-A // Marking ink // Kline Bernard L. // Western Union Telegraph Co
PDF File 1954626.pdf 287 kB Shaun Ewing Apr 10, 1934 00:00
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US-1954626-A // Signaling system // Janson George W. // Western Union Telegraph Co
PDF File 2131424.pdf 287 kB Shaun Ewing Sept 27, 1938 00:00
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US-2131424-A // Selective voice frequency relay // Bechberger Paul F. ; Thompson Charles S. ; Holborn Frederick // Western Union Telegraph Co
PDF File 1774292.pdf 286 kB Shaun Ewing Aug 26, 1930 00:00
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US-1774292-A // Moistureproof and gas-tight dam for lead-sheath cables // Reed Leland A. // Western Union Telegraph Co
PDF File 203019.pdf 284 kB Shaun Ewing Apr 30, 1878 00:00
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US-203019-A // Improvement in circuits for acoustic or telephonic telegraphs // Thomas A. Edison, Of New Jeesey // Westeen Union Telegeaph Company, Of New Yoek, N. Y.
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