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  1. History of the Cylinder Phonograph | History of Edison Sound …

  2. Edison's Invention of the Phonograph - ThoughtCo

  3. Thomas Edison patents the phonograph | February 19, 1878 - HISTORY

  4. The Phonograph - Thomas Edison National Historical Park (U.S.

  5. Origins of Sound Recording: Edison's Path to the Phonograph

  6. History of Edison Sound Recordings | Articles and Essays

  7. Origins of Sound Recording: Thomas Edison - Thomas Edison

  8. Today In History: Thomas Edison Invents the Phonograph

  9. The Tinfoil Phonograph - edison.rutgers.edu

  10. Edison’s Invention of the Phonograph – History of Sound …