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All Patents of Type: cutterhead sharpening machines
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
400,660Apr. 02, 1889H.C. GilbertMachine for grinding Shimer-molding bits, &c.cutterhead sharpening machines
403,712May 21, 1889O.A. WinterMachine for grinding the cutters of wood-cutting machinescutterhead sharpening machines
417,001Dec. 10, 1889A.E. CreighAutomatic knife-grindercutterhead sharpening machines
1,160,784Nov. 16, 1915F. StutzmanGrinding-machinecutterhead sharpening machines
1,443,150Jan. 23, 1923F. SchimmelGrinding toolcutterhead sharpening machines
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