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All Patents in class 451/541
Patents 1 - 15 of 22
First set of recordsNext set of recordsLast set of records
10,017Sep. 13, 1853J.M. SmithImproved cutter-head for molding machinescutters
110,102Dec. 13, 1870J.F. WoodImprovement in the manufacture of emery-wheels
201,778Mar. 26, 1878G. HartEmery Wheelgrinding wheels
429,697Jun. 10, 1890C.H. NortonGrinding Machinegrinders
494,471Mar. 28, 1893F.N. Gardner, C.H. BeslyGrinding or polishing wheel and the art of manufacturing same
646,397Mar. 27, 1900W.H. Thorne, J.S. BancroftGrinding-Machinetool grinders
883,649Mar. 31, 1908A.B. LandisGrinding-machinegrinding machines
914,244Mar. 02, 1909C.M. ConradsonMethod of Making Interchangeable Ground Glass Bottle Necks and Ground Glass Stoppers Therefore
921,717May 18, 1909A.B. LandisGrinding-machinegrinding machines
987,589Mar. 21, 1911E.S. MummertGrinding Machine for Sharpening Edged Toolssharpening machines
1,063,076May 27, 1913O.G. SimmonsFilemaking files
1,121,671Dec. 22, 1914G.H. SawyerGrinding attachment for hand drillshandheld power tool accessories
1,254,071Jan. 22, 1918W.F. ReinlieChuck
1,261,669Apr. 02, 1918W.E. WrightSawing Apparatus
1,278,588Sep. 10, 1918J. CameronCylinder Grinder
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