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 889

An illustration from Collection of United States patents granted to Thomas A. Edison, 1869-1884, 1869, leaf 889
mbination of an incandescing elec-tric lamp, means for producing a vacuum with-in its inclosing-globe, and means for concen-trating external heat upon the incandescentconductor, and means for absorbing any gasesor vapors given off by the incandescent con-ductor, substantially as set forth. This… … United States Patent Office. THOMAS A. EDISON, OF MENLO PARK, MW JERSEY, ASSIGNOR TO THEEDISON ELECTRIC LIGHT COMPANY, OF NEW YORK, N. Y. ELECTRIC MOTOR. SPECIFICATION forming part of Letters Patent No. 248,429, dated October 18, 1881. Application filed March 3, 1881. (So model.) To all whom it may…

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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