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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 129
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D. 0. ROYSTER. COMBINED MOTION PICTURE APPARATUS AND PHONOGRAPH. APPLICATION FILED JULY 15, 1912. 1,252,304. Patented Jan. 1,1918. 5 SHEETS-SHEET 5. … U/Xine^se^Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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