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 413
#11 S) OOOOQ. :• , OGO 00* •: . <OeO oo >•••• ..... OOOOO ^ … y^c&Sw^a ft J&t-ie&L- AM.PHOTO-LITH06RAPHICCO.N. Y:(osBORNtsprocess.) United States Patent Office. THOMAS A. EDISON, OF NEWARK, NEW JERSEY.IMPROVEMENT IN AUTOMATIC TELEGRAPHY AND IN PERFORATORS THEREFOR. .Specification forming part of Letters Patent No. 151,209, dafc-.d May 26, 1S74;…
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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![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten10unit-525-361.webp)
