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 555

An illustration from Collection of United States patents granted to Thomas A. Edison, 1869-1884, 1869, leaf 555
ectro-magnet for vi-brating the same, substantially as set forth. 3. The combination, in an acoustic-telegraphinstrument, of two reeds, one having a slightlydifferent vibration from the other, and a localcircuit to a sounder passing through suchreeds, substantially as and for the purposesset forth.… … N.PETERS. PHOTO-LITHOGRAPHER, WASHINGTON, 0 0. United States Patent Office. THOMAS A. EDISON, OF MEMO PAEK, NEW JEESEY.IMPROVEMENT IN SYNCHRONOUS MOVEMENTS FOR ELECTRIC TELEGRAPHS, Specification forming part of Letters Patent No. 200,032, dated February 5, 1878 ; application filed November 1,1876.…

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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