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 293
net h, in the circuitthat is opened and closed by the pulsator g,in combination with a stop that arrests themovement of the pulsator when the circuit isbroken, and a spring, or its equivalent, thatliberates the pulsator upon completing thebackward movement of the armature and pal-lets,… … AM.PKOTG-LmoeRAPHIC CO N.Y(oSBOJfKS PKOCESsj United States Patent Office THOMAS A. EDISON, OF NEWARK, NEW JERSEY, ASSIGNOR TO HIMSELFAND GEORGE HARRINGTON, OF WASHINGTON, D. C. IMPROVEMENT IN AUTOMATIC TELEGRAPH INSTRUMENTS. Specification forming part of Letters Patent No. 134,867, dated January…
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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