Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 247
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SUtot^Hf H. W. ROGERS.FILM CONTROL MECHANISM FOR MOTION PICTURE AND SOUND REPRODUCING MEANS. APPLICATION FILED SEPT. 25, 1916. 1,254,436. Patented Jan. 22,1918. ^5£&.&. 3 SHEETS-SHEET 3. … Ifc&./O. 20_ /9/ s- 2t 20 -/9 ^fc?//. /2» nsr, /V f-.** y ^ J 3Wit+lV&&Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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