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All Patents of Type: motor brushes
Patents 1 - 9 of 9
First set of recordsLast set of records
NumberDatePatenteeTitleType
CA-12,341Feb. 10, 1881E.J. Houston, E. ThomsonImprovements on automatic adjusters for commutator brushes of dynamo-electric machinesmotor brushes
345,336Jul. 13, 1886E. ThomsonCommutator brushmotor brushes
466,448Jan. 05, 1892F.J. SpragueCommutator-brush and holder for dynamo-electric machines and motorsmotor brushes
518,913Apr. 24, 1894G.W. BrownCommutator-brushmotor brushes
959,634May 31, 1910S. SparrowBrush or collector for electrical machinesmotor brushes
GB-191,511,790Aug. 10, 1916H.B. WhitmoreImprovements in Short-Circuiting and Brush Lifting Gear for Alternating Current Motorsmotor brushes
1,275,458Aug. 13, 1918H.I. Finch, C.R. MestonBrush-holder for commutator mechanismsmotor brushes
1,395,880Nov. 01, 1921D.W. WardCommutator Brush Reseating Toolbrush reseating tools
1,665,550Apr. 10, 1928J.T. JanetteContact holdermotor brushes
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