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All Patents in class 310/68A
Patents 1 - 15 of 20
First set of recordsNext set of recordsLast set of records
605,850Jun. 21, 1898F.E. BrinerElectric motorinduction motors
910,798Jan. 26, 1909W.O. DuntleyElectric hoisthoists and winches
979,143Dec. 20, 1910E.F. FaureControlling device for electrical apparatushandheld power tools
1,084,590Jan. 13, 1914H.L. ZabriskieElectric motor
1,245,860Nov. 06, 1917S.D. Black, A.G. DeckerElectrically-driven toolhandheld power tools
1,411,712Apr. 04, 1922F. DiehlTime-controlled motor
1,492,095Apr. 29, 1924S.D. Black, A.G. DeckerElectrically-driven toolhandheld power tools
1,502,169Jul. 22, 1924C.B. BennettElectric toolhandheld drills
1,546,474Jul. 21, 1925E.L. ConnellElectric switch and handlehandheld drills
1,587,566Jun. 08, 1926H.B. TuthillElectric-motor unitwood lathes
1,596,013Aug. 17, 1926J.J. GebhardtControl mechanism for electric toolselectric switches
1,679,185Jul. 31, 1928B.W. SweetScrew driver
1,702,245Feb. 19, 1929S.D. Black, A.G. DeckerElectrical connection for portable electric toolshandheld power tools
1,712,261May 07, 1929F.E. FarleySwitch for power drillshandheld drills
1,929,662Oct. 10, 1933F.W. WappatMotor driven tool switchhandheld power tools
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