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 487
the other, and the connections to thebatteries and line-wires, so as to transmitpositive or negative currents by the perforat-ed paper, with stylus-points of different met-als, arranged one iu advance of the other, sothat one marks with a negative, and the otherwith a positive, current,… … J -3 GGGG N. PETERS, PHOTO-LITHOGRAPHER, WASHINGTON, D C, United States Patent Office. THOMAS A. EDISON, OF NEWARK, NEW JEESEY, ASSIGNOR TO HIMSELFAND GEORGE HARRINGTON, OF WASHINGTON, D. 0. IMPROVEMENT IN AUTOMATIC TELEGRAPHY. Specification forming part of Letters Patent No. ITS.718. dated…
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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