He wrote a list of what the phonograph might be good for when he invented it, and kind of only one of his ideas turned out to have been the right early idea.

During the first part of the 20th century, Pathé became the largest film equipment and production company in the world, as well as a major producer of phonograph records.

The driving force behind the film operation was Charles Pathé, who had helped open a gramophone shop in 1894 and then established a phonograph factory at Chatou on the western outskirts of Paris.

I was out of the air force in 1956. No, no, that's not true I went in in 1956, came out in 1959, was working at the University of Washington, and I came up with an idea, from reading a magazine article, for a new kind of a phonograph tone arm.

L. Wegel, Theory of magneto mechanical systems as applied to telephone receivers and similar structures , Journal of the American Institute of Electrical Engineers , vol.40, pp.791 802, 1921. ref Sound reproduction An early application of these new theoretical tools was in phonographic sound reproduction.