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leon scott de martinville invented the phonautograph
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thomas edison invented the phonograph
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charles trainter invented the first lateral cut records
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charles trainter invented the gramophone
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emile berliner improved the gramaphone
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william s. arnold invented the jukebox
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columbia introduced the longplaying record
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at&t developped a flash pac audio player
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shean information systems launched the MP3
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the rio pmp300 was introduced by diamomd multimidia
