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All Patents in class 451/374
Patents 1 - 15 of 42
First set of recordsNext set of recordsLast set of records
79,213Jun. 23, 1868H. DisstonImprovement in Device for Holding Rotary Cutters while being Groundtool making machines
95,988Oct. 19, 1869A.G. CoesSharpening Machinecutter grinding
319,794Jun. 09, 1885M. CovelSaw sharpening machinesaw sharpening machines
326,889Sep. 22, 1885D. SlateGear-Cuttergear making machines
359,943Mar. 22, 1887G.H. SmithAttachment for Grinding Machinesgrinding attachments
384,613Jun. 19, 1888C.S. FarrarMachine for sharpening saws, &c.saw sharpening machines
400,660Apr. 02, 1889H.C. GilbertMachine for grinding Shimer-molding bits, &c.cutterhead sharpening machines
403,712May 21, 1889O.A. WinterMachine for grinding the cutters of wood-cutting machinescutterhead sharpening machines
427,517May 06, 1890A. KrostMatcher-head cutter-visesharpening machines
439,154Oct. 28, 1890F. HolzCutter Grindermilling machines
587,537Aug. 03, 1897C.E. Van NormanCombined lathe and milling-machinemetal lathes
667,321Feb. 05, 1901M.L. KeyesEdge Tool Grindersharpening machines
705,226Jul. 22, 1902J. EttingerGrinding Machinetool grinders
712,537Nov. 04, 1902C.S. HiseyElectric grinding devicehandheld power tools
714,894Dec. 02, 1902B.M. HansonRelieving Attachment for Lathesmetal lathe accessories
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