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All Patents in class 118/308
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
8,247XJun. 14, 1834I. Fischer, Jr.Manufacturing sandpapersanding machines
1,854,071Apr. 12, 1932E.C. SchachtMethod of manufacturing abrasives
RE20,660Feb. 22, 1938E.C. SchachtMethod of coating and apparatus therefor and product
2,245,301Jun. 10, 1941E.C. SchachtManufacture of abrasive articles
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