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All Patents in class 451/367
Patents 1 - 15 of 33
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7,010XApr. 19, 1832G.A. MadeiraMachinery for holding and grinding edge tools
5,902Nov. 07, 1848J.W. Chapman, W.Z. ChapmanHoning Machinesharpening machines
43,518Jul. 12, 1864S.D. McLellandImprovement in Grinding Edge-Toolsbench or pedestal grinders
62,566Mar. 05, 1867A.R. ReynoldsMachine for Grinding Metal Platessurface grinders
93,031Jul. 27, 1869L. ZimmermanImprovement in Grinding Edge-Toolsbench or pedestal grinders
147,921Feb. 24, 1874J.P. FayImprovement in Tool-Grinding Machinessharpening machines
173,234Feb. 08, 1876W.H. OgilvieImprovement in Machines for Grinding [Insertable] Saw-Teethsaw sharpening machines
183,798Oct. 31, 1876A.F. ChamplinImprovement in Tools for Sharpening Drillsbench or pedestal grinders
193,748Jul. 31, 1877C.P. BrownImprovement in Devices for Applying Edge-Tools to Sharpenerssharpening machines
354,690Dec. 21, 1886H. ClearyTool-holder for grindstonesbench or pedestal grinders
390,931Oct. 09, 1888B.D. WhitneySharpening-machineindustrial machine gearing
418,977Jan. 07, 1890C.E. ForryMachine for Grinding Lawn Mower Knivessharpening machines
451,801May 05, 1891C. BransgrovePlane-Iron-Sharpening Apparatussharpening machines
613,127Oct. 25, 1898W. EamesTwist Drill Grinderdrill grinders
614,092Nov. 15, 1898G.T. EamesDrill-grinderdrill sharpening machines
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