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All Patents in class 451/239
Patents 1 - 15 of 52
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NumberDatePatenteeTitleType
39,755Sep. 01, 1863A. SchwitterImprovement in engine-turning machinesornamental lathes
42,691May 10, 1864A. SchwitterImprovement in rose-enginesornamental lathes
76,301Apr. 07, 1868E. Carrington, E.O. CarringtonImprovement in Machine for Grinding and Cutting Down Augersmaking drills and augers
286,663Oct. 16, 1883H.F. WheelerGrinding Machine for Producing the Relief on Twist and Fluted Drillstool grinders
330,890Nov. 24, 1885J.M. GilbertPolishing mechanism for turning-lathessanding machines
397,888Feb. 19, 1889S.T. BarrasProfile-cutting machine
422,663Mar. 04, 1890C.H. TraskMilling-machinemilling machines
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 shapespattern 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
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