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All Patents of Type: mill stone dressers
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,521XMay 24, 1811B. Ridgeway, Jr., C. WoolvertonMachine for dressing mill stonesmill stone dressers
3,690XMay 06, 1823L. NorcrossMachine for dressing mill stonesmill stone dressers
1,268,624Jun. 04, 1918F.E. RileyAutomatic Grindstone Dressermill stone dressers
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