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All Patents in class 72/42
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
9,398XFeb. 13, 1836W. KeaneImprovement in Machines for Cutting Wood and Other Screwsscrew machines
RE2Apr. 16, 1838W. KeaneImprovement in Machines for Cutting Wood and Other Screwsscrew machines
2,268,125Dec. 30, 1941L.W. Nash, G.A. MartinCoilersheet metal
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