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Patents Granted on 1842-04-??
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,531Apr. 01, 1842G. HenningSelf-setting cog for sawmillssawmill dogs
2,566Apr. 16, 1842J. SheffieldMethod of setting logs for sawing boardssawmill carriages
2,581Apr. 23, 1842J.H. BurrowsMillstonecorn grinders
2,583Apr. 23, 1842S. WidermanMachine for Chamfering, Beveling, and Howeling Barrels, &c.
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