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History of the Cylinder Phonograph | History of Edison Sound …
Edison's Invention of the Phonograph - ThoughtCo
Thomas Edison patents the phonograph | February 19, 1878 - HISTORY
The Phonograph - Thomas Edison National Historical Park (U.S.
Origins of Sound Recording: Edison's Path to the Phonograph
History of Edison Sound Recordings | Articles and Essays
Origins of Sound Recording: Thomas Edison - Thomas Edison …
Today In History: Thomas Edison Invents the Phonograph
The Tinfoil Phonograph - edison.rutgers.edu
Edison’s Invention of the Phonograph – History of Sound …