United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 127
3$-*&7 38 37^ 4/ it ii ii mi ii ii ii 36 3^~ … 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.
Phonograph · Patents
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