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All Patents in class 451/269
Patents 1 - 11 of 11
First set of recordsLast set of records
NumberDatePatenteeTitleType
494,715Apr. 04, 1893I. GrassetDevice for Polishing Precious Stonespolishing and buffing machinery
610,036Aug. 30, 1898G.A. EnsignTread-sanding machinespecialty woodworking machines
1,017,880Feb. 20, 1912A.B. LandisGrinding-machinegrinders
1,264,928May 07, 1918L.R. HeimDevice for Feeding Rolls for End Grinding
1,436,759Nov. 28, 1922E.B. GardnerRing-grinding machinegrinders
1,486,337Mar. 11, 1924W.E. HokeMachine for Making Gauges and Other Articleslapping machines
1,499,104Jun. 24, 1924F.E. GardnerGrinding machinedisk sanders
1,523,952Jan. 20, 1925J. Nielsen, R.D. Gardner, E.B. GardnerGrinding machinedisk sanders
1,576,820Mar. 16, 1926F.E. GardnerGrinding machinedisk sanders
1,651,382Dec. 06, 1927R.D. Gardner, J. Nielsen, E.B. GardnerGrinding machine
2,336,796Dec. 14, 1943L.J. Lalime, A.E. MandevilleGrinding Machinegrinding machines
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