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Patents Granted on 1941-09-30
Patents 1 - 8 of 8
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,257,195Sep. 30, 1941J.D. RovickInternal Gear Finishing Machinegear making machines
2,257,364Sep. 30, 1941H.F. BakewellMachine tooltapping machines
2,257,407Sep. 30, 1941C.C. WulffKnife sharpenersharpening apparatus
2,257,452Sep. 30, 1941A.H. Dall, G.W. BinnsMetal Finishinggrinding machines
2,257,459Sep. 30, 1941W.W. GardnerAnti-kickback deviceradial arm saws
2,257,464Sep. 30, 1941A.J. GrafRadius Truing Attachmentgrinding machines
2,257,503Sep. 30, 1941W.C. De Graff, M.E. LangeTurning Toollathe tools
2,257,605Sep. 30, 1941A.L. HartleyAdjustable flame hardening torchflame hardening machines
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