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National Inventors Hall of Fame
National Inventors Hall of Fame: Thomas Alva Edison
This site honorsThomas Alva Edison as a historic inventor and focuses attention on his invention of the electric lamp.
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Edison: His Life and Inventions: The Telephone, Motograph, and Microphone
This site offers the text of a book by Frank Dyer and Thomas Martin published in 1929 on the inventions of Thomas Edison. This particular page discusses Alexander Graham Bell's development of the telephone and the controversy over Thomas...