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All Patents in class 451/367
Patents 16 - 30 of 35
First set of recordsPrevious set of recordsNext set of recordsLast set of records
613,127Oct. 25, 1898W. EamesTwist Drill Grinderdrill grinders
614,092Nov. 15, 1898G.T. EamesDrill-grinderdrill sharpening machines
643,914Feb. 20, 1900E.F. ShawTrowel Grinding Machinegrinding machines
976,270Nov. 22, 1910W.A. LeonardDie Grindertool grinders
1,252,612Jan. 08, 1918R.W. PerrySharpening Device
1,257,927Feb. 26, 1918W.M. ReaganScissors and Shears Sharpening Devicescissor sharpeners
1,266,183May 14, 1918H.A. VincentDevice for Sharpening Safety Razor Bladescutler
1,268,341Jun. 04, 1918J.J. GillespieGrinding Machinebench or pedestal grinders
1,275,208Aug. 13, 1918E. BocksheTool Support for Grinders
1,280,284Oct. 01, 1918W.E. NickersonBlade Holding Mechanism for Blade Sharpening Machinessharpening machines
1,455,405May 15, 1923J.F. NagleFixture for Grinding Beveled Chiselsgrinding fixtures
2,069,097Jan. 26, 1937P.H. RootKnife grindersharpening machines
2,415,121Feb. 04, 1947C.A. Wiken, H.V. BoehnkeDrill grindercutter grinding
2,481,936Sep. 13, 1949M.A. LordDevice for holding and setting jointer knivescutterhead-machine accessories
2,988,857Jun. 20, 1961M.M. Bass, R.M. BellGrinding machine
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