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All Patents in class 74/421A
Patents 1 - 15 of 19
First set of recordsNext set of recordsLast set of records
NumberDatePatenteeTitleType
14,327Feb. 26, 1856J. TempleBoring-machinedrilling and boring
595,731Dec. 21, 1897M.B. PengnetElectric motorelectric motors
693,837Feb. 25, 1902W.E. CanedyMotor-gearing
805,499Nov. 28, 1905S.D. StoycheffElectric drillhandheld drills
1,104,736Jul. 21, 1914F. SchneiderGearinghandheld drills
1,109,325Sep. 01, 1914W.O. DuntleyElectric drillhandheld drills
1,142,357Jun. 08, 1915R.A. NorlingTransmission gearinghandheld drills
1,356,297Oct. 19, 1920A.T. LochnerPower-hammer
1,497,513Jun. 10, 1924G.L. KelleyMachine for operating on floors or other surfaces
1,679,884Aug. 07, 1928H.T. ThomasAttachment for drillshandheld power tool accessories
1,698,827Jan. 15, 1929M. SkolnikMortising machinemortising machines
1,785,798Dec. 23, 1930T.C. WeissMotor driven toolhandheld drills
1,844,122Feb. 09, 1932G.W. Hoddy, L. DeutschMotor and drive connection
1,979,474Nov. 06, 1934D.C. KlausmeyerCartridge type drive gear assemblyradial drill presses
2,320,379Jun. 01, 1943R.A. NiekampElectric motor gearinggear motors
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