Inside Out Library

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 1373

An illustration from Collection of United States patents granted to Thomas A. Edison, 1869-1884, 1869, leaf 1373
t, and having no translatingdevices connected therewith, an auxiliary cir- cuit extending to the outer end of each feed-ing-circuit and containing a device for indi-cating electro motive force, and an adjustableresistancenn each feeding-circuit, substantiallyas set forth. This specification signed… … United States Patent Office* THOMAS A. EDISON, OF MENLO PARK, NEW JERSEY.DYNAMO OR MAGNETO ELECTRIC MACHINE. SPECIFICATION forming part of Letters Patent No. 268,205, dated November 28, 1882. Application filed May 17,1882. (]STo model.) To all whom it 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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