PhonographPatentEdison1880.jpg
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Drawing for a Phonograph, 05/18/1880. This is the printed patent drawing for a phonograph invented by Thomas A. Edison. From the National Archives.
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File history from en.wikipedia.org:
06:48, 15 December 2004 . . Brian0918 (101220 bytes) (Drawing for a Phonograph, 05/18/1880. This is the printed patent drawing for a phonograph invented by Thomas A. Edison. From the National Archives. {{PD}})