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All Patents in class 29/597
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
473,567Apr. 26, 1892C.G. CurtisCommutator Connection for Electric Motors or Generatorselectric motors
1,195,861Aug. 22, 1916E.F. SmithManufacture and construction of commutatorshandheld power tools
1,284,362Nov. 12, 1918W.H. KemptonMolded commutator-cylindermotor commutators
1,360,165Nov. 23, 1920C.C. ZenkMethod for making commutatorsmachine making
2,354,551Jul. 25, 1944M.B. SawyerElectromagnetic apparatus and method of making the sameinduction motors
3,421,212Jan. 14, 1969E.W. ChabotMethod of producing commutator lead connectionhandheld power tools
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