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All Patents in class 451/380
Patents 1 - 15 of 16
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NumberDatePatenteeTitleType
40,838Dec. 08, 1863J.A. HendrickImprovement in Machines for Grinding and Polishing Toolstool grinders
359,943Mar. 22, 1887G.H. SmithAttachment for Grinding Machinesgrinding attachments
411,845Oct. 01, 1889O.S. WalkerDrill-grinding machinesharpening machines
542,099Jul. 02, 1895B. Bloomheart, W.F. NicholsGrinding Apparatusgrinders
543,458Jul. 30, 1895J. BerryMachine for Sharpening Insertable Saw Teethsaw sharpening machines
904,817Nov. 24, 1908F. StutzmanUniversal grinding-machinebench or pedestal grinders
946,635Jan. 18, 1910F. FrankeMachine for grinding straight machine-knivescutter grinding
981,810Jan. 17, 1911D.I. SterlingGrindstone Attachmentgrinding attachments
987,589Mar. 21, 1911E.S. MummertGrinding Machine for Sharpening Edged Toolssharpening machines
1,016,585Feb. 06, 1912P.A. SolemGrinding-machinessharpening machines
1,077,306Nov. 04, 1913P.H. RootGrinding Machinesharpeners
1,214,241Jan. 30, 1917V.M. TuthillUniversal knife-holding barwoodworking machine sharpening mechanisms
2,467,674Apr. 19, 1949E.C. KruegerTool grinder
3,151,420Oct. 06, 1964G.J. Machacek, Jr.Machine for grinding knivessharpening machines
4,733,501Mar. 29, 1988F.A. McLeanHoning guide
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