United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 973
h it may be attached to the central post,with slight motional adherence, a point andnotch at the outer end having an upturnedlip adapted to be engaged by the tone-pro-ducing point upon its arrival at the end of therecord. In testimony whereof I have hereunto set my hand in presence of two… … -4^?-.
Phonograph · Patents
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