United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 216
ore set forth of the standard having up- 60rights d\ cP, and pins d\ projecting from saidstandards, the vibrating frame F, swung uponsaid pins, the weighted lever,/, p, pivoted onstandard cF, having its unweighted end bear-ing against the under side of the frame F, to 65counterpoise it… … ^ JCZ
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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