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 937
the globe becomes smaller, untilat the points B B, where it is set into the socket,it is less than one-half the diameter A A. Itwill be seen that the globe is thus apptoxi- 30mately pear-shaped.What I claim is— The design for incandescent electric lamps,herein described and shown. This… … United States Patent Office. THOMAS A. EDISON, OF MENLO PARK, NEW JERSEY.VACUUM-PUMP. SPECIFICATION forming- part of Letters Patent No. 251,536, dated December 27, 1881.Application filed December 7,1881. (No model.) I To all whom it may concern: Be it known that I, Thomas A. Edison, ofMenlo Park,…
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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