December 24, 1877. Thomas Edison files a patent for the first phonograph capable of recording and playing sound. The groundbreaking product was a byproduct of Edison’s work to improve the telegraph ...
KANSAS CITY, Mo. (KCTV) - October 17, 1888. Thomas Edison files a patent for the optical phonograph, a device capable of recording and replaying sound for the first time, producing a moving picture.
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