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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 264
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No. 773,486. PATENTED OCT. 25, 1904. B. DDBINSKI. SOUND REPRODUCING MACHINE. APPLICATION FILED MAT 17, 1904. NO MODEL. tf SHEETS-SHEET 7. … AttorneysPhonograph · Patents
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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