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All Patents in class 451/548
Patents 1 - 15 of 36
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NumberDatePatenteeTitleType
12,820May 08, 1855B. HardingeFacing Bed for Grinding Artificial Granite, Etc.stone dressing machines
70,393Nov. 05, 1867G.L. BentonImproved emery-wheels for grinding and polishing saws, &c.saw sharpening machines
79,132Jun. 23, 1868A. Hathaway, J. KendallPolishing Glasspolishing and buffing machinery
193,437Jul. 24, 1877E.J. Worcester, V.F. PrenticeImprovement in machines for grinding mower and reaper knivesgrinders
201,778Mar. 26, 1878G. HartEmery Wheelgrinding wheels
261,198Jul. 18, 1882R. BartonDental Grinding Tooldental apparatus
293,398Feb. 12, 1884W.P. BarclayAbrading Toollathe tools
342,290May 18, 1886R. DuttonMachine for Grinding Mowing Machine Knivessharpeners
344,919Jul. 06, 1886P.A. OtisImproved planer-knife grindertool grinders
359,964Mar. 22, 1887R. DuttonMachine for grinding mower-knivessharpeners
465,376Dec. 15, 1891A. JohnstonMeans for Grinding Cutlery or Other Articlessharpening apparatus
477,130Jun. 14, 1892J.H. LawlesMachine for Turning Patterns in Pearl Ivory or Other Substancesbutton making machinery
481,415Aug. 23, 1892J. McClellanPolishing Wheelpolishing machines
494,471Mar. 28, 1893F.N. Gardner, C.H. BeslyGrinding or polishing wheel and the art of manufacturing same
612,240Oct. 11, 1898L.E. Harper, C.L. GrohmannMachine for dressing and grinding metalgrinders
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