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 1273
erived* from the same main conductors^and means in connection with each group for?regulating the current energizing the field-;magnet of the machine, acting automaticallyupon the addition of removal of translatingdevices in the group, substantially as set forth.] This specification signed and… … United States Patent Office. THOMAS A. EDISON, OF MENLO PARK, NEW JERSEY.REGULATOR FOR DYNAMO-ELECTRIC MACHINES. SPECIFICATION forming part of Letters Patent No. 264,670, dated September 19, 1882.Application filed August 7, 1882. (No model.) To all whom %t may concern: Be it known that I, Thomas A.…
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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