United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 349
F7TT~S - … Wi 11 iam H. Gates , 3m>CM.toz, b >3r&uAip< (£Uu\^ y Qttoitwu THE NORRIS PETERS CO.. WASHINGTON. D. C UNITED STATES PATENT OFFICE. WILLIAM H. GATES, OF NORWICH, CONNECTICUT.MANDREL FOR PHONOGRAPHIC RECORDS. No. 825,045. Specification of Letters Patent.Application filed March 30, 1905.…
Phonograph · Patents
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