Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 145
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CharlesL.Chisholm inventor Attorneys No. 814,941. PATENTED MAR. 13, 1906. C. L. CHISHOLM.PITCH INDICATING ATTACHMENT FOR SOUND REPRODUCING MACHINES. APPLICATION FILED AUG. 8, 1905. 5 SHEETS—SHEET 2. Jig. 2.Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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