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 563
r vibrat-ing the same, substantially as set forth. 3. The combination,in an acoustic-telegraphinstrument, of two reeds, one having a slightly-different vibration from the other, and a localcircuit to a sounder passing through such reeds,substantially as and for the purposes set forth. Signed by me… … N. PETERS. Photo-Lithographer. Wa«WngtOri. O. C United States Patent Office THOMAS A. EDISON, OF MENLO PABK, 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,…
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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