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All Patents in class 241/46.15
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,282,887May 12, 1942F.W. RobertsWood Grinding Machinewood grinding machines
2,406,904Sep. 03, 1946F.W. RobertsWood Grinding Machinewood grinding machines
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