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All Patents in class 451/409
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
636,540Nov. 07, 1899S.E. LoudenDevice for Holding Lawn Mower Cutters for Sharpeningmetal lathe accessories and attachments
709,178Sep. 16, 1902S.C. SchofieldTool Holder and Guide for Grindstonesgrinding machines
1,071,634Aug. 26, 1913A.L. De LeeuwTooth Restgrinding fixtures
1,613,174Jan. 04, 1927C.C. KoelnDevice for stoning cutterssharpening machines
2,035,163Mar. 24, 1936K.W. HolmbergTool Holder and Guidesharpening tool holders
2,725,690Dec. 06, 1955W.F. FrenchCutter grinding mandrel with tooth rest
2,754,634Jul. 17, 1956W.F. FrenchTooth rests for cutter grinderscutter grinding
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