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 965
tbelow the standard of a system, electro-mo-tive force or pressure therein remaining un- S5changed, consisting in diminishing the radiat-ing-surface and increasing the resistance pro-portionately from the standard of the system as the light-giving capacity is to be dimin-ished, substantially as set… … N. PETERS. Photo-Lithographer. Washington. D. C. United States Patent Office. THOMAS A. EDISON, OF MENLO PARK, NEW JEESEY, ASSIGNOR TO THEEDISON ELECTRIC LIGHT COMPANY, OF NEW YORK, N. Y. ELECTRIC LAMP. SPECIFICATION forming part of Letters Patent No. 251,543, dated December 27, 1881. Application…
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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