United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 713
^ por-tion, a hollow rib on one edge, a rib on the op- 30posed edge of the section to fit the first-men-tioned rib, and pivoted clips on the hollowribs and arranged, when in place, to cover theopen side of the hollow rib. In testimony that we claim the foregoing 35we have hereunto set our hands… … 3fy:2
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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