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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 777

An illustration from Collection of United States patents granted to Thomas A. Edison, 1869-1884, 1869, leaf 777
(No Model.) T. A. EDISON. Manufacture of Carbons for Incandescent Electric Lamps.No. 238,868. Patented March 15, 1881. … United States Patent Office THOMAS A. EDISON, OF MENLO PARK, NEW JERSEY.MANUFACTURE OF CARBONS FOR INCANDESCENT ELECTRIC LAMPS. SPECIFICATION forming part of Letters Patent No. 238,868, dated March 15, 1881. Application filed May 24, 1880. (So model.) 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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