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All Patents in class 451/242
Patents 1 - 15 of 109
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NumberDatePatenteeTitleType
152,632Jun. 30, 1874P.W. HartImprovement in machines for sawing lathslath making machines
189,483Apr. 10, 1877M.H. McNairDevices for Fitting and Polishing Cylinders and Ringsmandrels and arbors
302,644Jul. 29, 1884H.C. AlbeeConcentric lathewood lathes
396,553Jan. 22, 1889J.L. FowleMachinery for grinding metallic bandstool making machines
401,550Apr. 16, 1889W. Gibson, R. RayApparatus for shaving barrels, &c.barrel making machines
562,268Jun. 16, 1896F. AshtonApparatus for Grinding Parallel Spindles Rods or Shaftscylindrical grinders
1,106,803Aug. 11, 1914R.H. GrantGrinding-machinecylindrical grinders
1,483,748Feb. 12, 1924F.C. SanfordGrinding Machinecenterless grinders
1,575,557Mar. 02, 1926L.F. Nenninger, S.F. EinsteinWork Rest and Guiding Device for Grinding Machinescenterless grinders
1,611,048Dec. 14, 1926C. KnowlesBack Rest for Cylindrical Grinderscylindrical grinders
1,639,958Aug. 23, 1927C.H. NortonCenterless Grinding Machinegrinding machines
1,647,131Nov. 01, 1927L.R. HeimGrindinggrinding machines
1,659,237Feb. 14, 1928C. BoothGrindinggrinding machines
1,663,991Mar. 27, 1928L.F. NenningerCenterless Work Guidegrinding machines
1,683,974Sep. 11, 1928L.R. HeimGrinding Apparatusgrinding machines
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