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 1277
d the resistance,mechanism operated or controlled by said elec-tro-mngnet for throwing such resistance into 6and out of the main line, and the tield-of-forcecircuit of the machine connected with the mainconductors beyond such resistance, substan-tially as set forth. This specification signed and… … United States Patent Office. THOMAS A. EDISON/, OF MENLO PAEK, NEW JERSEY.REGULATOR FOR DYNAMO-ELECTRIC MACHINES. SPECIFICATION forming part of Letters Patent No. 264,671, dated September 19, 1882.Application filed August 7, 1882. (No model.) To all wiiom it may concern : Be it known that I, Thomas…
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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