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All Patents of Type: motor brushes
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
345,336Jul. 13, 1886E. ThomsonCommutator Brushmotor brushes
518,913Apr. 24, 1894G.W. BrownCommutator-brushmotor brushes
959,634May 31, 1910S. SparrowBrush or collector for electrical machinesmotor brushes
1,275,458Aug. 13, 1918H.I. Finch, C.R. MestonBrush-holder for commutator mechanismsmotor brushes
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