United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 753
xtended at an acute angle relative tothe central portion of the disk, the cuttingend of said tool being substantially round 90and being inclined at an angle slightly lessthan a right angle relatively to the lowersurface of the cutting tool, for the purposesstated. Des Moines, Iowa, July 15, 1909.… … W/T/JESSES £cttAfZA^^ L7^C<=^ INVENTOR BY ^^<>i^oi^ ,P\x^^ ^^ ATTORNEY 1. THE N09RIS f£TEfiS CO.. WASHINGTON. D. C. UNITED STATES PATENT OFFICE. n EDWARD F. LEEDS, OF NEW YORK, N. Y.PHONAUTOGRAPHIC RECORD AND PROCESS OF DUPLICATING THE SAME. 974,893. Specification of letters Patent.…
Phonograph · Patents
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