Inside Out Library · Explore

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 417

An illustration from Collection of United States patents granted to Thomas A. Edison, 1869-1884, 1869, leaf 417
ng ofpunches massed together in a square, ornearly so, and mechanism intervening betweensuch punches and the finger-keys, for select-ing from such mass of punches those that arerequired for perforating characters correspond-ing with the characters upon the respectivefinger-keys, substantially as… … United States Patent Office. THOMAS A. EDISOK, OF KEWABK, NEW JERSEY.IMPROVEMENT IN DISTRICT TELEGRAPH SIGNAL-BOXES. Specification forming part of Letters Patent No. 154,7§8, dated September 8,1874 ; application filed May 11, 1874. Case 86. To all whom it may concern: Be it known that I, Thomas A.…

Trade catalogs · Patents · Edison, Thomas A. (Thomas Alva), 1847-1931 · Inventions · Telegraph · Electric machinery · Electric apparatus and appliances · Phonograph · Telephone · Motors

Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.

More pictures from Collection of United States patents granted to Thomas A. Edison, 1869-1884

More like this