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All Patents in class 451/292
Patents 1 - 15 of 16
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NumberDatePatenteeTitleType
938,803Nov. 02, 1909C.E. Van NormanMetal-working machinerycylindrical grinders
1,203,844Nov. 07, 1916A.C. Page, C. BoothGrinding Machinegrinding machines
1,263,057Apr. 16, 1918J.T. GriffinMica Grinding Machine
1,264,928May 07, 1918L.R. HeimDevice for Feeding Rolls for End Grinding
1,519,611Dec. 16, 1924F.E. GardnerGrinding machinedisk sanders
1,523,952Jan. 20, 1925J. Nielsen, R.D. Gardner, E.B. GardnerGrinding machinedisk sanders
1,530,488Mar. 24, 1925F.E. GardnerGrinding machinedisk sanders
1,531,282Mar. 31, 1925F.E. GardnerGrinding machinedisk sanders
1,548,562Aug. 04, 1925H.K. SpencerMeans For And Method Of Handling Work Piecesmagnetic chucks
1,548,563Aug. 04, 1925H.K. SpencerMeans For Handling Articlesgrinding attachments
1,576,820Mar. 16, 1926F.E. GardnerGrinding machinedisk sanders
1,651,382Dec. 06, 1927J. Nielsen, E.B. Gardner, R.D. GardnerGrinding machine
1,689,176Oct. 23, 1928H.K. SpencerGrinding Machinesurface grinders
1,909,614May 16, 1933E.B. GardnerRotary grinding machine
2,105,872Jan. 18, 1938A.L. WarnerGrinding machinesharpeners
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