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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 209

An illustration from Collection of United States patents granted to Thomas A. Edison, 1869-1884, 1869, leaf 209
tthe zero-points; hence the levers h % will notbe operative unless these has been a loss inthe movement of the type-wheel that is thrownout of action. I claim as my invention— Two type-wheels separately revolved by astep-by-step motion, in combination with aseparate lever or levers operated by the… … United States Patent Office THOMAS A. EDISON, OF NEWAKK, NEW JEKSEY.IMPROVEMENT IN PRINTING-TELEGRAPHS. Specification forming part of Letters Patent No. 131,336, dated September 17,1872. To all whom it may concern: Be it known that I, Thomas A. Edison, ofNewark, in the county of Essex and State…

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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