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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 831
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Witnesses: -Mi a. &«rt*s *s- £tty/ THE WOM.S PETERS CO., WASHINGTON, D.C No. 848,687. PATENTED APR. 2, 1907. C. RIDDERHOF.PHONOGRAPH. APPLICATION TILED 8EPT. 27, 1905. 3 SHEETS-SHEET 2. … Witnesses: #. Ouu^C I q vector. *£-»**«//£ &tfy! *&# hs nouhis pints co . washikotox. d. c No. 848,687. PATENTED APR. 2, 1907. C. RIDDERHOF.PHONOGRAPH. APPLICATION FILED SEPT. 27, 1905. 3SHEET8-8HEET 3.Phonograph · Patents
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