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All Patents in class 451/173
Patents 1 - 11 of 11
First set of recordsLast set of records
NumberDatePatenteeTitleType
98,850Jan. 18, 1870H. Harpin, J. CoulterStone Dressing Machinestone dressing machines
382,909May 15, 1888H.H. ScovillePolishing Lathestoneworking lathes
422,874Mar. 04, 1890L.B. BentonTool Grindertool grinders
763,315Jun. 21, 1904J.M. NashMachine for reducing wood or other material
956,918May 03, 1910T.B. WilliamsValve-reseating toolautomotive tools
1,941,275Dec. 26, 1933G.A. SchipperSanding machinesanding machines
2,254,508Sep. 02, 1941H.B. BarrettHoning Toolhoning tools
2,257,452Sep. 30, 1941A.H. Dall, G.W. BinnsMetal Finishinggrinding machines
2,333,304Nov. 02, 1943C. Herfurth, A.H. Dall, H. ErnstSurface Finishing Machinerygrinding machines
2,778,170Jan. 22, 1957E.V. FlandersMethod of Grinding, Including Grinding Wheel Forminggrinder dressers
3,120,723Feb. 11, 1964W.F. JessupMachine Tool Mechanism for the Formation of Circular Contoursgrinder dressers
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