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All Patents in class 451/231
Patents 1 - 15 of 19
First set of recordsNext set of recordsLast set of records
NumberDatePatenteeTitleType
46,152Jan. 31, 1865D. SlateImprovement in turning-lathesmetal lathes
RE5,236Jan. 14, 1873P. Schrag, P. HufelandMachine for cutting off pencilspencil making machines
235,352Dec. 14, 1880J. FranzmannMachine for shaping wooden shovelsspecialty machines
542,099Jul. 02, 1895B. Bloomheart, W.F. NicholsGrinding Apparatusgrinders
648,648May 01, 1900H. AllenMower-knife grinder
876,372Jan. 14, 1908R.C. MatthewsSurface Grinding Machinesurface grinders
896,357Aug. 18, 1908R.S. BrownMachine for Sharpening Cutter Teethtool grinders
1,261,669Apr. 02, 1918W.E. WrightSawing Apparatus
1,395,880Nov. 01, 1921D.W. WardCommutator Brush Reseating Toolbrush reseating tools
1,481,569Jan. 22, 1924C.E. TannewitzTrimming sawcircular crosscut saws
1,483,748Feb. 12, 1924F.C. SanfordGrinding Machinecenterless grinders
1,979,140Oct. 30, 1934L.G. CaseyCutting-off machine
2,214,141Sep. 10, 1940A.W. MallRail slotter
2,318,456May 04, 1943A.N. BlumCutting chain sharpenerbench or pedestal grinders
2,340,553Feb. 01, 1944E.F. Obear, W.F. ObearAbrasive cutoff machinemetalcutting circular saws
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