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Patents for United States Electrical Tool Co.
Patents 1 - 15 of 20
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NumberDatePatenteeTitleType
511,570Dec. 26, 1893H.P. WhiteRotary electro-magnetic engineelectric motors
1,550,712Aug. 25, 1925J.A. SmithGrinding machinebench or pedestal grinders
RE17,087Sep. 18, 1928P.L. BillingsleySawing devicecombination machines
1,760,257May 27, 1930J.A. SmithSwitchhandheld power drills
1,827,269Oct. 13, 1931G.E. SmithTool driving apparatushandheld power tools
1,827,270Oct. 13, 1931G.E. SmithGrinding wheel guardbench or pedestal grinders
1,923,760Aug. 22, 1933J.A. SmithGrinding machinebench or pedestal grinders
1,986,378Jan. 01, 1935J.A. SmithApparatus for air purification
1,991,337Feb. 12, 1935J.C. SmithDust separating apparatus
D112,728Dec. 27, 1938G.A. WeingartnerDesign for a power driven hand tool unithandheld power sanders
D123,257Oct. 29, 1940G.D. BehlenDesign for a portable electric sander or the likehandheld power sanders
D124,057Dec. 17, 1940G.D. BehlenDesign for a portable power driven tool unithandheld power drills
2,271,933Feb. 03, 1942G.D. BehlenPower hammerhandheld power tools
2,281,722May 05, 1942G.E. SmithSanding or polishing padhandheld power sanders
2,301,156Nov. 03, 1942G.D. BehlenVentilation system for portable power toolshandheld power tools
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