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All Patents in class 451/64
Patents 1 - 15 of 27
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NumberDatePatenteeTitleType
16,223Dec. 16, 1856E. AndrewsImproved machine for grinding sawscutter grinding
657,357Sep. 04, 1900J.L. PerrySandpapering-machinesanding machines
983,975Feb. 14, 1911W.L. BryantMultispindle grinding-machinegrinders
1,026,389May 14, 1912E.J. McClellan, G.K. GarvinHole Grinding Machinegrinding machines
1,445,875Feb. 20, 1923R.W. Ellingham, C.E. Van NormanGrinding machinevehicle mechanic
1,662,821Mar. 20, 1928S. EinsteinInternal Grindergrinding machines
1,695,759Dec. 18, 1928P. ConradsonGrinding Machinegrinding machines
1,779,823Oct. 28, 1930C.H. NortonAutomatic Cylindrical grinding machinecylindrical grinders
1,881,984Oct. 11, 1932C.E. Van NormanSlide Mechanism for Precision Grinding Machinesgrinding machines
1,991,799Feb. 19, 1935C. Booth, S. EinsteinGrinding Machinegrinding machines
2,042,257May 26, 1936C.W. Hopkins, R.E. HarrisonMachine Toolgrinding machines
2,043,408Jun. 09, 1936E.F. HaasGrinding Machinegrinding machines
2,076,808Apr. 13, 1937W.L. BryantGrinding machinesgrinders
2,101,383Dec. 07, 1937H.H. AsbridgePrecision grinding machine
2,106,216Jan. 25, 1938A.M. JohnsonHoning machinehoning machines
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