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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 961

An illustration from Collection of United States patents granted to Thomas A. Edison, 1869-1884, 1869, leaf 961
nd means for normally holding thelever at the point to throw in the maximum re-sistance, substantially as described. 2. The combination, with the electric motor, of the resistance, the lever, the retracting- 70spring, the foot-treadle, and switch, substan-tially as set forth. This specification… … N. PETERS. Photo-Lithographer, Washington. 0. C. United States Patent Office THOMAS A. EDISON, OF MENLO PABK, NEW JEESEY, ASSIGNOB TO THEEDISON ELECTEIO LIGHT COMPANY, OF NEW YOEK, N. Y. SYSTEM OF ELECTRIC LIGHTING. SPECIFICATION forming part of Letters Patent No. 251,542, dated December 27,1881.…

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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