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 323
to act upon the armature i, and closethe circuit a through the printing-magnets d,repelling the armature h. By this transmitting mechanism the circuitsa b can be operated at the distant station orstations with reliability and facility over asingle line main circuit. I remark that a pulsator-wheel… … N. PETERS. Photo-Lilhographer, Washington, D. C. 4 Sheets — Sheet 2. T. A. EDISON.Printing Telegraphs. Reissued August 5, 1873
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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