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All Patents in class 451/380
Patents 1 - 14 of 14
First set of recordsLast set of records
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
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
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
6,926,596Aug. 09, 2005W.A. TarrisTool Sharpening Apparatustool grinders
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