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All Patents in class 74/134
Patents 1 - 10 of 10
First set of recordsLast set of records
NumberDatePatenteeTitleType
163,342May 18, 1875D.L. ToppanImprovement in drill for drilling metaleggbeater drills
231,361Aug. 17, 1880W.H. RichardsRachet Drilldrill presses
298,457May 13, 1884I.M. FurbishHand-drilleggbeater drills
507,968Oct. 31, 1893C.T. BurrRatchet-drillhand drills
806,349Dec. 05, 1905C.H. KnightSawmill set-workssawmill set works
894,673Jul. 28, 1908G.O. LeopoldRatchet mechanismratcheting screwdrivers
917,319Apr. 06, 1909G.O. LeopoldBreast-drillbreast drills
939,042Nov. 02, 1909G.O. LeopoldGearingeggbeater drills
982,510Jan. 24, 1911G.O. LeopoldRatchet mechanismeggbeater drills
1,097,571May 19, 1914I.M. ThurlowIntermittent-grip devicesawmill set works
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