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All Patents in class 366/296
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
6,003XMay 28, 1830I. BrewsterChurnchurns
7,238XOct. 25, 1832A.C. CarrelChurnchurns
211,576Jan. 21, 1879C.A. Lawton, E.W. ArndtImprovement in bran-dustersgrain hullers
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