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 51

An illustration from Collection of United States patents granted to Thomas A. Edison, 1869-1884, 1869, leaf 51
as specified, formoving a type or character wheel with a step-by-step motion in either direction, substantiallyas specified. 4. The unison-lever L, in combination withthe type or character wheel and a separateelectro-magnet, M, substantially as specified. Bated December 28, A. D. 1869. GEO. B.… … United States Patent Office. FRANK L. POPE, OF ELIZABETH, NEW JERSEY, AND THOMAS A. EDISON, OF NEW YORK, N. Y. IMPROVEMENT IN PRINTING-TELEGRAPH APPARATUS. Specification forming part of Letters Patent No. 102,320, dated April 26, 1870. To all whom it may concern: Be it known that we, Frank L. Pope,…

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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