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All Patents in class 451/121
Patents 1 - 14 of 14
First set of recordsLast set of records
151,669Jun. 02, 1874M. NewmanImprovement in metal shaping and dressing machinessurface grinders
516,146Mar. 06, 1894C.A. WordenMachine for sharpening razors, shears, &c.
856,662Jun. 11, 1907G.W. SmithFace-mill grindertool grinders
1,212,214Jan. 16, 1917J. HalterbeckAbrading-machinesanding machines
1,281,512Oct. 15, 1918J.A. CarothersSaw Grinding Machinesaw sharpening machines
1,780,886Nov. 04, 1930E.F. Mitchell, J.F. PribnowCircular-saw-sharpening machinesaw sharpening machines
1,936,992Nov. 28, 1933B.D. PinkneySanding machinesanding machines
2,081,360May 25, 1937A.W. MallRail slotter
2,214,141Sep. 10, 1940A.W. MallRail slotter
2,286,821Jun. 16, 1942L.D. LibbyMachine for Cutting Dies and the Likemilling machines
2,335,625Nov. 30, 1943J.C. WilsonGrinding Machinegrinders
3,012,380Dec. 12, 1961M.M. Bass, R.M. BellTable extension for a grinding machine
3,245,176Apr. 12, 1966A.A. MuehlingGrinding machine
3,418,758Dec. 31, 1968J. McEwanOscillating vertical spindle sanderoscillating spindle sanders
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