United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 127
D. 0. ROYSTER. .COMBINED MOTION PICTURE APPARATUS AND PHONOGRAPH, APPLICATION FILED JULY 15, 1912. 1,252,304. Patented Jan. 1,1918. 5 SHEETS-SHEET 4.J^XQ. S. … 3$-*&7 38 37^ 4/ it ii ii mi ii ii ii 36 3^~
Phonograph · Patents
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