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 425

An illustration from Collection of United States patents granted to Thomas A. Edison, 1869-1884, 1869, leaf 425
I claim as my invention— 156,813 The local batteries u and norw and x ina shunt from the main line and opposingeach other, and a connection between themto the transmitting or receiving instrument,in combination with the main batteries, re-sistances, and circuits, arranged substantiallyas and for… … United States Patent Office. THOMAS A. EDISON, OF NEWAEK, YEW JEESET.IMPROVEMENT IN TELEGRAPH APPARATUS. Specification forming part of Letters Patent No. 158,YSY, dated January 19, 187i^ application died August 13, 1874. To all whom it may concern: Be it known that I, Thomas A. Edison, ofNewark, in…

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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