United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 801
JZ&.Z … t&i -j?J& THL »o*»,j P»r,», c. WAIHIHCTOH. C c. Nc. 847,631. PATENTED MAR. 19, 1907. E. L. AIKEN.PHONOGRAPH. APPLICATION TILED TEB. 20, 1006. 2 SHEETS—SHEET 2. -&#?
Phonograph · Patents
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