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Patents Granted on 1812-03-19
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
1,687XMar. 19, 1812J. GouldingThrashing machinemiller
1,688XMar. 19, 1812G.M. Broun (Brown)Machine for separating grain and seeds by rubbingmiller
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