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 907
g located successivelynearer the path of the material to be acted on,substantially as and for the purpose set forth. 4. The combination of a sieve, an elevator, a series of electro - magnetic separators, con- 50I structed substantially as shown, and a singledelivery-chute, substantially as set… … Inventor. <?/. Scltiorv United States Patent Office THOMAS A. EDISON, OF MENLO PAEK, NEW JERSEY, ASSIGNOR TO THEEDISON ELECTRIC LIGHT COMPANY, OE NEW YORK, N. Y. VACUUM APPARATUS. SPECIFICATION forming part of Letters Patent No. 248,433, dated October 18, 1881. Application filed January 31,…
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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