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 733
ing of a pyroinsulatedcoiled wire, in combination with a surrounding 5Pcase that is rendered incandescent by the ra-diated heat, substantially as set forth. 2. The combination, with the electric lamp,of the thermal regulator, a resistance, and anadjusting device, n, arranged and operating… … N.iPETERS, PHOTO-LITHOGRAPHER, WASHINGTON, D. C. United States Patent Office. THOMAS A. EDISON, OF MENLO PAEK, JSTEW JERSEY.ELECTRIC LIGHT. SPECIFICATION forming part of Letters Patent No. 227,229, dated May 4, 1880. Application filed April 21, 1370. To all whom it may concern: Be it known that I,…
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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