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 739
2 Sheets—Sheet 2 T. A. EDISON.Phonograph. No. 227,679. Patented May 18, 1880. … United States Patent Office. THOMAS A. EDISON, OF MENLO PARK, NEW JERSEY.PHONOGRAPH. SPECIFICATION forming part of Letters Patent No. 227,679, dated May 18, 1880. Application filed March 29, 1879. To all whom it may concern: Be it known that I, Thomas Alva Edison,of Menlo Park, in the State of New…
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.
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