Records of the Patent and Trademark Office. 1836 - 1978. Sample of Abandoned Patent Applications. 1894 - 1937. Method of Recording Sounds, Thomas Edison
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Edison, Thomas Alva, 1847-1931
http://n2t.net/ark:/99166/w66z0150 (person)
Thomas Alva Edison (born February 11, 1847, Milan, Ohio – died October 18, 1931, West Orange, New Jersey), American inventor and businessman who has been described as America's greatest inventor. He developed many devices in fields such as electric power generation, mass communication, sound recording, and motion pictures. These inventions, which include the phonograph, the motion picture camera, and early versions of the electric light bulb, have had a widespread impact on the modern industrial...
