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Patents for George G. Crowell
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
410,581Sep. 10, 1889G.G. CrowellTool for Dressing Abrasive Surfacesgrinder dressers
441,139Nov. 25, 1890G.G. CrowellJournal-bearing for emery grinding-machinesbench or pedestal grinders
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