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All Patents of Type: grinders
Patents 1 - 15 of 58
First set of recordsNext set of recordsLast set of records
568XAug. 10, 1804C. VeltenairMetallic Grinder or Honegrinders
8,224XMay 28, 1834J. WheatonElliptical spindle grindergrinders
3,105May 26, 1843T. FairbanksDischarging Dust from Grinding Wheelsgrinders
72,636Dec. 24, 1867W.C. HicksGrinding and Polishing Concave Surfacespolishing and buffing machinery
81,608Sep. 01, 1868J.P. CurtissMachine for Grinding Metal Articlesgrinders
81,611Sep. 01, 1868J.W. DouglasGrindstone Framegrinders
105,392Jul. 12, 1870W.L. WashburnGrinding Apparatusgrinders
145,488Dec. 16, 1873P.D. CummingsGrinding Machinesgrinders
205,416Jun. 25, 1878L.D. Dana, F.D. RandallImprovement in Grinding-Machinesgrinders
211,096Jan. 07, 1879J.E. HoppenImprovement in grindstone-framesgrinders
396,077Jan. 15, 1889J. FlatherMachine for Grinding and Turning Tapersmetal lathes
429,697Jun. 10, 1890C.H. NortonGrinding Machinegrinders
429,698Jun. 10, 1890C.H. NortonGrinding Machinegrinders
429,700Jun. 10, 1890E.H. ParksGrinding Machinegrinders
434,115Aug. 12, 1890C.H. NortonGrinding Machinegrinders
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