 Charles Sumner Tainter - External link: Encyclopedia - Charles Sumner TainterCharles Sumner Tainter (April 25, 1854 - April 20, 1940) was an American engineer and inventor, best known for his collaborations with Alexander Graham Bell, Chichester Bell and his improvements to Thomas Alva Edison's phonograph, resulting in the graphophone, one version of which was the first dictaphone.
Tainter was born in Watertown, Massachusetts, where he went to public school. His education was modest, he acquired his knowledge mostly through self-education. In 1873, he took a job for a company producing telescopes in Cam ...
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