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All Patents of Type: valve grinding tools
Patents 1 - 15 of 69
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NumberDatePatenteeTitleType
160,159Feb. 23, 1875T.S. CarrollFitting Toolvalve grinding tools
237,784Feb. 15, 1881E.V. TannerMachine for Grinding Plug Valvesvalve grinding tools
286,095Oct. 02, 1883J.D. WaldranValve Grindervalve grinding tools
836,487Nov. 20, 1906F.G. CroneValve Dresservalve grinding tools
918,049Apr. 13, 1909R.H. HazeltineMachine for Reseating Valvesvalve grinding tools
918,050Apr. 13, 1909R.H. HazeltineValve Grinding Devicevalve grinding tools
926,957Jul. 06, 1909A.S. NoonanValve Truing Toolvalve grinding tools
930,472Aug. 10, 1909F.I. HardingValve Grindervalve grinding tools
942,222Dec. 07, 1909I.C. SmithValve Grindervalve grinding tools
949,057Feb. 15, 1910H.W. Brown, G.H. BrownValve Reseating Devicevalve grinding tools
956,822May 03, 1910M.F. ParsonsGrinding Toolvalve grinding tools
995,002Jun. 13, 1911C.A. HerleValve Grinding Toolvalve grinding tools
998,660Jul. 25, 1911F.J. VlchekCompound Toolcombination tools
1,005,864Oct. 17, 1911W.L. MilnerValve Grinding Apparatusvalve grinding tools
1,015,902Jan. 30, 1912N.E. MeredithValve Grindervalve grinding tools
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