United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 847
r/G-l … W/-TN£.SS£LS. /nventor: jrO///V^. SHOEMAKERBY j~^ ATTORNEYS^ UNITED STATES PATENT OFFICE. JOHN A. SHOEMAKER, OE ADA, MINNESOTA.GUIDING DEVICE EOK, PHONOGRAPH TONE-ARMS. 1,264,691. specification of Letters Patent. Patented Apr. 30, 1918. Application filed May 22,1917. Serial No. 170,315. To all…
Phonograph · Patents
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