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 543

An illustration from Collection of United States patents granted to Thomas A. Edison, 1869-1884, 1869, leaf 543
lever and spring be employed; but thespeed and reliability are not as great as withthe reed. I claim as my invention— The combination, with the electro-magnetand reed or lever vibrated by the same, of theperforating - needle, tubular pen, and circuit-breaker operated by the reed or lever,… … ay, United States Patent Office. THOMAS A. EDISON, OF MENLO PARK, NEW JERSEY, ASSIGNOR TO THEWESTERN UNION TELEGRAPH COMPANY. IMPROVEMENT IN TELEPHONIC TELEGRAPHS. Specification forming j>art of Letters Patent No. 198,087, dated December 11,1877; application filed May 16, 1876. To all whom it…

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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