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 643

An illustration from Collection of United States patents granted to Thomas A. Edison, 1869-1884, 1869, leaf 643
N. PETERS, PHOTO-UTHOGfiAPHER. WASH1NQT0N, 0 0. United States patent Office. THOMAS A. EDISON, OF MENLO PARK, NEW JERSEY.IMPROVEMENT IN VOCAL ENGINES. Specification forming part of Letters Patent No. 210,767, dated December 10, 1878; application filed November 27, 1878. To all wlwm 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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