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 897
wn and de-scribed. 3. In an electro magnetic railway-brake, thecombination of a fixed or stationary electro-magnet, movable polar extensions mountedthereon, and a rotating armature, consisting of a portion of the running-gear, or of a metallicdisk attached thereto, substantially as set forth. This… … United States Patent Office. THOMAS A. EDISON, OF MENIX) PARK, NEW JERSEY.PRESERVING FRUIT. SPECIFICATION forming part of Letters Patent No. 248,431, dated October 18, 1881. Application filed December 14, 1880. (Xo model.) To all whom it way concern: Be it known that I, Thomas A. Edison, ofMeulo…
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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