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 355
2 Sheets — Sheet 2 . T. A. EDISON.Perforators for Automatic Telegraphs. No. 141,775. Patented August 12, 1873. … United States Patent Office. THOMAS A. EDISON, OF NEWARK, NEW JEESEY, ASSIGNOR TO HIMSELFAND GEORGE HARRINGTON, OF WASHINGTON, D. 0. IMPROVEMENT IN PERFORATORS FOR AUTOMATIC TELEGRAPHS. Specification forming part of Letters Patent No. 141,775, dated August 12,1873 ; application filed March 13,…
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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