United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 42
J. F. MEANS. ELECTRIC BRAKE FOR GRAPHOPHONES. APPLICATION FILED APE. 18, 1910. Patented Jan. 17, 1911. 981,935. 2 SHEETS-SHEET 2. … HE NORRIS PETERS CO..
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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