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Patents for J. P. Crawford
Patents 1 - 4 of 4
First set of recordsLast set of records
RE5,209Dec. 31, 1872D. LaneImprovement in head-blocks for saw-millssawmill headblocks
RE6,212Jan. 05, 1875C.B. RoseImprovement in bit-stocksbraces
166,954Aug. 24, 1875F.R. WoodwardImprovement in rotary paper-cutterscombination cork extractors
174,105Feb. 29, 1876E.H. BenedictImprovement in jig-sawsscrollsaws
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