United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 710
H. T. SOOTT & L. J. PATTEESON. AUTOMATIC PHONOGRAPH. APPLICATION FILED MAT 27, 1911. Patented Oct. 1, 1912. 1,040,029. 6 SHEETS-SHEET 3. … COLUMBIA PLANOQRAPH CO.. WASHINGTON. D. C.
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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