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All Patents in class 451/522
Patents 1 - 9 of 9
First set of recordsLast set of records
209,648Nov. 05, 1878A. BridgmanImprovement in sandpapering-machinessanding machines
226,273Apr. 06, 1880J.L. Perry, A. BridgmanWood-polishing machinesdrum sanders
240,179Apr. 12, 1881J.L. PerrySanding machinesanding machines
RE10,152Jul. 11, 1882A. Bridgman, J.L. PerryWood-polishing machinesanding machines
352,988Nov. 23, 1886A. Bridgman, J. ChallonerDrum sandersanding machines
798,455Aug. 29, 1905M.L. SchlueterFloor-surfacing machinesanding machines
846,159Mar. 05, 1907M.V. StoneSandpaper-holder
1,395,880Nov. 01, 1921D.W. WardCommutator Brush Reseating Toolbrush reseating tools
1,406,275Feb. 14, 1922C.G. NormanSandpapering machinesanding machines
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