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 765
T. A. EDISON.Acoustic Telegraph. No. 235,142. Patented Dec. 7, 1880. … .PETERS. PHOTO-LITHOGRAPHER, WASHINGTON, a. 0. United States Patent Office THOMAS A. EDISON, OF MENLO PARK, N. J., ASSIGNOR TO WESTERN UNIONTELEGRAPH COMPANY, OF NEW YORK, N. Y. ACOUSTIC TELEGRAPH. SPECIFICATION forming part of Letters Patent No. 235,142, dated December 7, 1880. Application filed…
Trade catalogs · Patents · Edison, Thomas A. (Thomas Alva), 1847-1931 · Inventions · Telegraph · Electric machinery · Electric apparatus and appliances · Phonograph · Telephone · Motors
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
