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 1485
(No Model.) T. A. EDISON. TRANSMITTING TELEPHONE. No. 274,576. Patented Mar. 27,1883. … N. PETERS. Photo-Lithographer, Washington. D. C- United States Patent Office. THOMAS A. EDISON, OF MENLO PARK, NEW JERSEY.TRANSM ITTING-TELEPHONE. SPECIFICATION forming part of Letters Patent No. 274,576, dated March 27, 1888. Application filed October 6, 1882. (Komodel.) To all ichom it may…
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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