United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 128
ombination of themachine-frame A, having the shaft a*, theframe B, and the diaphragm-frame E,iiivotedin the frame B and carrying the spring e, engaging with said shaft a^ substantially as 120and for the purposes set forth. In testimony whereof I, the said Louis S.Clarke, have hereunto set my hand.… … I THE NORftlS PETCnS C United States Patent Office. LEON F. DOUGLASS, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TOEDWARD D. EASTON, OF SAME PLACE. METHOD OF AND MEANS FOR DUPLICATING OR TRANSFERRING PHONOGRAPHIC RECORDS. ro IS SPECIFICATION formiag part of Letters Patent No. 475,490, dated May…
Phonograph · Patents
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