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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 666
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L. LUMIERE. ACOUSTICAL INSTEOMENT. •APPLICATION FILED MAE. 26, 1910. 1,036,529. Patented Aug. 20, 1912. 5 SHEETS-SHEET 2. … ATTORNEY COLUMBIA PLANOORAPH CO.. WASHINGTON, D, C.Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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