Inside Out Library

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 125

An illustration from Collection of United States patents granted to Thomas A. Edison, 1869-1884, 1869, leaf 125
ction by releasing thepressure of said roller i, as set forth. 3. A series of automatic telegraxDh instru-1ments in one main telegraph-line, with lock-]ing mechanism and indicators, operated byjelectro-magnets, and arranged, substantially Ias set forth, so as to throw into action the de- jsired… … 134,800 United States Patent Office. THOMAS A. EDISON, OF NEWABK, NEW JEBSEY, ASSIGNOB TO HIMSELFAND GEOBGE HABBINGTON, OF WASHINGTON, D. 0. IMPROVEMENT IN TELEGRAPHIC RECORDING INSTRUMENTS. Specification forming part of Letters Patent Ko. 124,800, dated March 19, 1872. To all ivhom it may concern:…

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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