United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 141
pLL.^ — V Core-<L.w:r^ » ^j p. M. RAVENSKILDE. PHONOGRAPH. APPLIGATION FILED OCT. 20, 1908. 948,675. Patented Feb. 8,1910. 7 SHEETS-SHEET 3. ;-. t ^ ^ t I k k k ^ ■■ ■■ t k k t k V ^ V ^ ■■ 11 ^ ^ ^ ^ «-«. ■■ ■■ v-r-r … -7
Phonograph · Patents
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