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 565
i-PETERS, PHOTO-LITHOGRAPHER, WASHINGTON. 0 C. 2 Sheets-Sheet 2. T. A. EDISON.Acoustic Telegraph. No. 200,993. Patented March 5, 1878. —m—i … N.PETERS, PHOTO-LITHOGRAPHEB, WASHINGTON. D 0. United States Patent Office. THOMAS A. EDISON, OF MENLO PABK, NEW JEESEY, ASSIGNOB TO THEWESTEEN UNION TELEGBAPH COMPANY. IMPROVEMENT IN ACOUSTIC TELEGRAPHS. Specification forming part of Letters Patent No. 200,993, dated March 5,1878 ; application…
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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![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten02unit-56-21.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-473-319.webp)
