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All Patents in class 451/18
Patents 1 - 15 of 21
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NumberDatePatenteeTitleType
591,357Oct. 05, 1897C.H. NortonMicrometer Feed for Grinding or Other Machinesmetalworking machine mechanisms
654,314Jul. 24, 1900A.B. LandisGrinding-machinegrinders
732,184Jun. 30, 1903B.M. HansonDimensioning apparatusmeasuring tools
781,434Jan. 31, 1905A.B. LandisAutomatic sizing mechanism for grinding-machinesgrinders
879,276Feb. 18, 1908A.B. LandisGrinding-machinegrinders
956,208Apr. 26, 1910E.F. SmithGrinding-machinesurface grinders
RE13,892Mar. 16, 1915C.E. Van NormanMachine for grinding bearing-racesgrinding machines
1,424,764Aug. 08, 1922C. KnowlesSurface Grindersurface grinders
1,722,691Jul. 30, 1929C.E. Van NormanGrinding machinegrinders
1,872,667Aug. 23, 1932W.J. BryantWork sizinggrinders
1,874,583Aug. 30, 1932L.F. NenningerGrinding Machinerygrinding machines
1,877,500Sep. 13, 1932H.R. Isler, S. EinsteinHydraulic Grindergrinding machines
1,926,603Sep. 12, 1933B.F. StowellAutomatic feed for grinding machinesgrinders
1,928,162Sep. 26, 1933H.H. AsbridgePrecision grinding or abrading machinegrinding machines
1,938,760Dec. 12, 1933H. FritschiGrinding Machinegrinding machines
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