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 1637
ic 55machine, of the blower shell or cylinder hav-ing its open end fitting over the end of the ar-mature, and provided with notches formingair-outlets, and its other or closed end pro-vided with an aperture fitting upon the com- 60mutator-cylinder, substantially as set forth. This specification… … <3 # J\T T E STi INVENT OHi
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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