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All Patents in class 91/447
Patents 1 - 5 of 5
First set of recordsLast set of records
230,612Aug. 03, 1880C.M. BrownPower-hammertrip and helve hammers
1,937,244Nov. 28, 1933G.M. PeltonControl means for dogging mechanismsawmill dogs
2,027,706Jan. 14, 1936J.H. McKewen, L.L. SchauerCounterbalance valvedrill presses
3,003,472Oct. 10, 1961D.C. Miller, R.M. FerrisQuill Actuating and Clamping Mechanismmilling machines
3,077,132Feb. 12, 1963C.H. WhitmoreFeed control for band sawsbandsaws
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