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Patents Granted on 1842-04-23
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
2,581Apr. 23, 1842J.H. BurrowsMillstonecorn grinders
2,583Apr. 23, 1842S. WidermanMachine for Chamfering, Beveling, and Howeling Barrels, &c.
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