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All Patents in class 451/294
Patents 1 - 15 of 106
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NumberDatePatenteeTitleType
103,242May 17, 1870J. ShaughnessyImprovement in Tool Grinding Attachment for Lathesgrinders
103,474May 24, 1870V. KnechtImproved pulley-sheaveindustrial machine pulleys and belt drive mechanisms
154,434Aug. 25, 1874W.F. WolfImprovement in molding-machinesmolders
183,061Oct. 10, 1876M.P. LockeAdjustable Crank for Grindstones, &c.human powered apparatus
306,560Oct. 14, 1884F. Van De WaterBelt-tightenerindustrial machine pulleys and belt drive mechanisms
325,373Sep. 01, 1885E.J. WorcesterDrill-grinding attachment for drilling-machineswoodworking post drills
348,143Aug. 24, 1886L. SchevellSaw-sharpenersaw sharpening machines
441,570Nov. 25, 1890R.B. LeightonLens Grinding Machinematerial grinding machines
457,079Aug. 04, 1891R. DuttonMachine for grinding mower-knivessharpeners
492,451Feb. 28, 1893F.D. WinkleyGrinding apparatus
499,905Jun. 20, 1893W.B. CannonGrinding Attachment for Lathesmetal lathe accessories and attachments
516,146Mar. 06, 1894C.A. WordenMachine for sharpening razors, shears, &c.
583,402May 25, 1897M.O. ReevesSpeed-varying mechanismindustrial machine pulleys and belt drive mechanisms
615,390Dec. 06, 1898O.W. Hult, C.A. HultApparatus for Grinding Round Objectscylindrical grinders
651,839Jun. 19, 1900A.D. ErbSanding machinesanding machines
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