Collection of United States patents granted to Thomas A. Edison, 1869-1884 (1869)
Edison, Thomas A. (Thomas Alva), 1847-1931, Peters, N. (Norris), lithographer, Hammer, William Joseph, 1858-1934, former owner. DSI, Edison, Thomas A. (Thomas Alva), 1847-1931, inscriber. DSI, United States. Patent Office · Washington, D.C. : U.S. Patent Office · leaf 383
line to aidin clearing such line of the static charge. I claim as my invention— An artificial line between the receiving-in-strument and the earth, to balance the resist-ance and static charge, or nearly so, at bothsides of the receiving-instrument, substan-tially as set forth. Signed by nie this… … 2 Sheets — Sheet 2.. T. A. EDISON.Perforators for Automatic Telegraphy. No.147,312. Patented Feb. 10, 1874,
Trade catalogs · Patents · Edison, Thomas A. (Thomas Alva), 1847-1931 · Inventions · Telegraph · Electric machinery · Electric apparatus and appliances · Phonograph · Telephone · Motors
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