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[Graphophone patents] (1878)

United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 488

An illustration from [Graphophone patents], 1878, leaf 488
G. C. LA MOUNTAIN. TRIMMER FOR PHONOGRAPa RECORDS. APPLICATION PILED 00T.16, 1911. 1,032,338. Patented July 9, 1912. … -^^.^. ^^^^^a. _^^^^^^^^^^^^^^^^^^^^^^^^^^^ 'O'tAX COLUMBIA PLANOOBAPH CO.. WASHINGTON, D. C.

Phonograph · Patents

Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.

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