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 1049
th piece, and a springacting to press the diaphragm toward the ten- 95sion-regulator, substantially as set forth. 3. In a telephone-instrument, a diaphragmthat iscorrugated or ribbed at or near its edges,substantially as set forth. 4. In a telephone, the combination, with the 100diaphragm, of a… … WITNESSES: X INVENTOR: <s ATTYVBXrPVfl Lithographer, Washington. United States Patent Office. THOMAS A. EDISON, OF MENLO PABK, NEW JERSEY.MAGNETIC ORE-SEPARATOR. SPECIFICATION forming part of Letters Patent No. 263,131, dated August 22, 1882. Application filed June 22, 1881. (No model.) To all…
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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