United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 475
7/3 EDT l,3 J m WITNESSES: … -ATTORNEY mTff IE NORPIS PETERS CO., PHOTO LITHO.. WASHINGTON. D C. UNITED STATES PATENT OFFICE. EDWARD C. WALTER, OF NEW YORK, N. Y.AUTOMATIC STOPPING DEVICE POR PHONOGRAPHS. 1,141,507. Specification of Letters Patent. Patented June 1,1915. Application filed November 4,1913. Serial No 799,220. To…
Phonograph · Patents
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