Inside Out Library

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 1551

An illustration from Collection of United States patents granted to Thomas A. Edison, 1869-1884, 1869, leaf 1551
ove and below the nor-mal condition of the current, substantially as |set forth. 3. In a dynamo or magneto electric machine,the movable commutator-brushes, in combina-tion with swiveled connections between thesame and the main conductors, substantiallyas set forth. This specification signed and… … N. PETERS, Ph«o-U*«s™ph«- Warimtfor.. a C United States Patent Office, THOMAS A. EDISON, OF MENLO PARK, NEW JERSEY, ASSIGNOR TO THEEDISON ELECTRIC LIGHT COMPANY, OP NEW YORK, N. % SYSTEM OF ELECTRICAL DISTRIBUTION* SPECIFICATION forming part of Letters Patent No. 280,727, dated July 3, 1883.…

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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