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Patents for Berlin Machine Works
Patents 1 - 15 of 70
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NumberDatePatenteeTitleType
226,273Apr. 06, 1880J.L. Perry, A. BridgmanWood-polishing machinesdrum sanders
240,179Apr. 12, 1881J.L. PerrySanding machinesanding machines
273,304Mar. 06, 1883J.L. PerryAbrading cutter-headsanding machines
285,666Sep. 25, 1883J.L. PerryAbrading-cylindersanding machines
392,663Nov. 13, 1888J.E. CarpenterWood-polishing machinesanding machines
399,629Mar. 12, 1889J.L. PerryPolishing-cylindersanding machines
416,801Dec. 10, 1889E.G. Richards, O.B. OsbornWood-polishing machinesanding machines
425,376Apr. 08, 1890L.D. ForbesAbrading-cylindersanding machines
441,633Dec. 02, 1890J.B. Bennett, A.P. BoardmanVibrator-attachment for polishing-machinessanding machines
441,634Dec. 02, 1890J.B. Bennett, A.P. BoardmanPolishing-machine
441,635Dec. 02, 1890J.B. Bennett, A.P. BoardmanPolishersanding machines
441,636Dec. 02, 1890J.B. BennettDrum sanding machinesanding machines
445,030Jan. 20, 1891A.P. BoardmanPolishing-machinesanding machines
447,047Feb. 24, 1891J.L. PerryWood-polishing machinesanding machines
449,666Apr. 07, 1891J.E. CarpenterWood-polishing machinesanding machines
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