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 373
1 No. 146,812 T. A. EDISON.Teleg raph Sig nal-Boxes. Patented Jan, 27, 1874. … AM. PHOW LITHOGRAPHIC Co. M. Y. lOSBORNES PPOceSS, United States Patent Office. THOMAS A. EDISON, OF NEWABK, NEW JEBSEY, ASSIGNOB TO AMEBICANDISTRICT TELEGRAPH COMPANY, OF NEW YORK, N. Y. IMPROVEMENT IN TELEGRAPH-SIGNAL BOXES. Specification formiDg part of Letters Patent No. 140,812, dated January…
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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