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 1243
cir-cuit including the main portion of its field-magnet coils and another multiple-arc circuitincluding the remaining portion, these twoportions being arranged to have theircurrents 85iu opposite directions, substantially as and forthe purpose set forth. This specification signed and witnessed… … INVENTOR: ATTORNEY . U. PETERS. Photo-LHhographer. Washington. D. C. United States Patent Office. THOMAS A. EDISON, OP ME NLO PAKE, NEW JEESE Y.REGULATOR FOR DYNAMO-ELECTRIC MACHINES. SPECIFICATION forming part of Letters Patent No. 264,663, dated September 19, 1882. Application filed August…
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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