United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 147
THE NORRIS PETERS CO., PHOTO-LITHU.. WASHINGTON. O C T. A. EDISON. MACHINE FOE SHAVING SOOND RECORDS OR BLANKS.APPLICATION FILED JUNE 22, 1911. 1,130,156. Patented Mar. 2,1915. 3 SHEETS-SHEET 2. … Z9 Z$> j i_i 9 Z9 Z9 &
Phonograph · Patents
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