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All Patents in class 451/239
Patents 1 - 15 of 20
First set of recordsNext set of recordsLast set of records
76,301Apr. 07, 1868E.O. Carrington, E. CarringtonImprovement in Machine for Grinding and Cutting Down Augersmaking drills and augers
330,890Nov. 24, 1885J.M. GilbertPolishing mechanism for turning-lathessanding machines
397,888Feb. 19, 1889S.T. BarrasProfile-cutting machine
460,497Sep. 29, 1891J.S. BancroftTool Grinding Machinetool grinders
543,647Jul. 30, 1895C.H. Benjamin, C.W. GliddenGrinding Machineshoe and boot making machines
544,288Aug. 13, 1895H.W. ColeLathe for irregular shapeswood lathes
544,891Aug. 20, 1895W.F. GilmanLathe for turning lasts, &c.pattern lathes
624,882May 09, 1899F. UnkrichSpoke-finishing machinewheelwright
679,611Jul. 30, 1901G.A. EnsignSpoke-finishing machinebelt sanders
880,965Mar. 03, 1908J.T. BrantleySandpaper-machinebelt sanders
904,817Nov. 24, 1908F. StutzmanUniversal grinding-machinebench or pedestal grinders
960,408Jun. 07, 1910F.C. Rowell, J.L. NolanAbrading-machinesanding machines
1,017,879Feb. 20, 1912A.B. LandisGrinding-machinegrinding machines
1,255,962Feb. 12, 1918E.D. Paul, C.C. WarnerGrinding Machine
1,259,770Mar. 19, 1918C.G. OlsonGrinding Machine
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