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 953
An incandescing electric lamp consisting ota glass bulb, A, formed originally with an openlower end having thickened walls, an incan-descing conductor, and leading-in wires se-cured directly in the lower end of said bulb by 90thecompression thereon of thethickened walls,substantially as shown. _… … WITNESSES: INVENTOR: ATTORNEYS. to-UhogrupJier. Washington. United States Patent Office. THOMAS A. EDISON, OF MENLO PAEK, NEW JERSEY, ASSIGNOR TO THEEDISON ELECTRIC LIGHT COMPANY, OF NEW YORK, N. Y. CARBON FOR ELECTRIC LAMPS. SPECIFICATION forming part of Letters Patent No. 251,540, dated December…
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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