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All Patents of Type: handheld power tools
Patents 1 - 15 of 116
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NumberDatePatenteeTitleType
606,549Jun. 28, 1898E. HolmesPortable electric drillhandheld power tools
698,418Apr. 22, 1902R.F. SpraguePower-driven toolhandheld power tools
712,537Nov. 04, 1902C.S. HiseyElectric grinding devicehandheld power tools
750,744Jan. 26, 1904J.F. WilleyPortable drillhandheld power tools
781,062Jan. 31, 1905D.J. Hauss, C.W. MilesElectric or hand-powered breast drillhandheld power tools
809,394Jan. 09, 1906A. PedersenElectrically-operated portable drillhandheld power tools
810,444Jan. 23, 1906C.W. TheilElectric drillhandheld power tools
894,228Jul. 28, 1908W.D. Price, J.A. Dreher, A.E. WelkerBoring machinedrilling and boring
956,849May 03, 1910W.C. HafemeisterPortable electric drillhandheld power tools
979,143Dec. 20, 1910E.F. FaureControlling device for electrical apparatushandheld power tools
1,172,169Feb. 15, 1916F. SchneiderElectrically-operated toolhandheld power tools
1,195,861Aug. 22, 1916E.F. SmithManufacture and construction of commutatorshandheld power tools
1,229,401Jun. 12, 1917A.G. Decker, S.D. BlackDrill gearinghandheld power tools
1,245,860Nov. 06, 1917S.D. Black, A.G. DeckerElectrically-driven toolhandheld power tools
1,372,045Mar. 22, 1921R.G. SedgewickValve grinderhandheld power tools
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