Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 145
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K^ ^s^ ^^. 6. … -lUrcr. UOMW « iTA^M CO P»OTO uKOOnA^tSS «««.K<iIOI. 0 C p. M. RAVENSKILDE. PHONOGRAPH, APFLIOATION FILED OOT. 20, 1908. 948,675. Patented Feb. 8,1910. 7 BHEET8-8HEET 6. <^^.J0.Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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