Thomas A. Edison

Thomas Edison invented the automatic repeater, duplex telephone, phonograph, the electric pen, the microphone, the megaphone, kinetoscope, the microtasimeter, and the quadruplex and sextuplex transmitters.

Keywords

inventor, kinventors, phonograph, the automatic repeater, duplex telephone, the electric pen, the microphone, the megaphone, kinetoscope, the microtasimeter, the quadruplex and sextuplex transmitters

Galleries

Famous People: E, Inventors

Source

The Teachers' and Pupils' Cyclopaedia (Kansas City: The Bufton Book Company, 1909) 2:549

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