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All Patents in class 173/30
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
494,461Mar. 28, 1893F.H. CathcartPower-Driven Tool
750,744Jan. 26, 1904J.F. WilleyPortable drillhandheld power tools
810,444Jan. 23, 1906C.W. TheilElectric drillhandheld power tools
922,371May 18, 1909R. WinklerBoring Machinecorner drills
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