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 443
is of a bluishtinge, and with a tin pen or stylus the markis purple of cassius. The above-mentioned solution is very sensi-tive to electric action, and is available inchemical telegraphs. I claim as my invention— The solution for chemical telegraph-paperprepared with aurichloride of sodium,… … N. PETERS, Photo-Lithographer. Wellington, United States Patent Office. THOMAS A. EDISON, OF NEWARK, NEW JERSEY, ASSIGNOR TO HIMSELFAND GEORGE HARRINGTON, OF WASHINGTON, D. 0. IMPROVEMENT IN DUPLEX TELEGRAPHS. Specification forming part of Letters Patent No. 162,633, dated Apiil 27, 1875;…
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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