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 995
mold and then filling the mold with plastic materialaround the neck of the lamp and within thecontacts, whereby the entire base is formed ofsuch plastic material, substantially as set forth. 2. The mold having seats for the contact- 20rings, in combination with a holder for retain-ing the lamp in… … United States Patent Office. THOMAS A. EDISON, OF MENLO PARK, NEW JERSEY, ASSIGNOR TO THEEDISON ELECTRIC LIGHT COMPANY, OF NEW YORK, N. Y. MAGNETO OR DYNAMO ELECTRIC MACHINE. SPECIFICATION forming part of Letters Patent No. 251,550, dated December 27, 1881. Application filed March 3, 1881. (No…
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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