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All Patents of Type: motor commutators
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
271,947Feb. 06, 1883E. ThomsonCommutator for Dynamo Machinesmotor commutators
493,439Mar. 14, 1893A.W. MestonCommutator for dynamo-electric machines and method of constructing samemotor commutators
854,704May 21, 1907W.J. RichardsDynamo-electric machinemotor commutators
1,090,328Mar. 17, 1914C.B. MillsSingle-phase motormotor commutators
1,669,134May 08, 1928N.T. KelsoMolded commutatorelectric motor making
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