Graphapone was invented (1 jan 1885 ano – 1 jan 1886 ano)

Descrição:

The Graphophone was the name and trademark of an improved version of the phonograph. It was invented at the Volta Laboratory established by Alexander Graham Bell. Its trademark usage was acquired successively by the Volta Graphophone Company, then the American Graphophone Company, the North American Phonograph Company, and finally by the Columbia Phonograph Company

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