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 1477

An illustration from Collection of United States patents granted to Thomas A. Edison, 1869-1884, 1869, leaf 1477
lamp, of a chamber made entirely of glass,leading-in wires passing through and sealedin the glass of said chamber, and a flexiblecarbon incandescing conductor formed of anumber of separate filaments massed togetherand secured to said leading-in wires, substan-tially as set forth. This specification… … C 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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