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All Patents in class 74/421R
Patents 31 - 45 of 47
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NumberDatePatenteeTitleType
1,249,905Dec. 11, 1917C.F. DavisBack Gear for Lathe Heads and the Likemetalworking machine gearing
1,445,294Feb. 13, 1923H.P. CampElectric hand drillhandheld power drills
1,464,595Aug. 14, 1923E. BocksheGrinderbench or pedestal grinders
1,532,798Apr. 07, 1925H.R. Blakeslee, C. BouillonLathe Attachmentmetal lathe accessories and attachments
1,679,884Aug. 07, 1928H.T. ThomasAttachment for drillshandheld power tool accessories
1,844,122Feb. 09, 1932L. Deutsch, G.W. HoddyMotor and drive connection
2,428,049Sep. 30, 1947J. TateDrill pressdrill presses
2,716,350Aug. 30, 1955R.D. PharesSlow speed converter motor drivemetalworking speed changing mechanisms
2,742,797Apr. 24, 1956J.A. PerhamMulti-spindle portable power-operated tool
2,878,909Mar. 24, 1959F.E. Munschauer, Jr.Power press drive mechanismpunch presses
2,881,880Apr. 14, 1959F.E. Munschauer, Jr.Power press drive mechanismpunch presses
2,946,232Jul. 26, 1960G.H. JonesGear Drivemetalworking machine gearing
2,946,234Jul. 26, 1960R.H. JahnkePress brakesheet metal brakes
2,991,595Jul. 11, 1961W.A. AddisPower operating belt sanding machinehandheld power sanders
3,009,366Nov. 21, 1961C.T. RobertsGearheadindustrial machine gearing
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