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 881
combination of a flask adapted to beheated in any suitable manner, a frame there-in for supporting separately and freely from 90each other carbon filaments, and means forpassing through the flask a stream of hydro-carbon vapor, substantially as set forth. This specification signed and witnessed… … /&* £X dWf- OCT n ? r N. PETEHfti Photo-Lithographer. Washington. D. C. United States Patent Office* THOMAS A. EDISON, OF MENLO PARK, NEW JEESEY, ASSIGNOR TO THEEDISON ELECTEIO LIGHT COMPANY, OF NEW YORK, N. Y. APPARATUS FOR TREATING CARBONS FOR ELECTRIC LAMPS. SPECIFICATION forming part of…
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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