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All Patents in class 408/4
Patents 1 - 15 of 21
First set of recordsNext set of recordsLast set of records
1,337Sep. 25, 1839C. WhitsittRotary Saw for Cutting Round Tenons, &c.hollow bits
1,679,027Jul. 31, 1928A. Meldrum, C. GabrielsonDrilling machinedrill presses
1,918,150Jul. 11, 1933E.J. Kingsbury, G. SwahnbergMultiple head automatic drilling machinemultiple spindle drill presses
1,948,618Feb. 27, 1934D.C. KlausmeyerInterlocked arm clamp and elevating controlradial drill presses
1,956,540Apr. 24, 1934A.M. SosaElectric arm clamping and elevating mechanismradial drill presses
2,019,509Nov. 05, 1935A.M. Sosa, L.L. SchauerHydraulic column and arm clamp with elevating controlradial drill presses
2,020,785Nov. 12, 1935D.C. KlausmeyerInterlocked propelling and clamping means for mobile drillsradial drill presses
2,021,388Nov. 19, 1935L.L. SchauerHydraulic arm translating means for radial drillsradial drill presses
2,251,015Jul. 29, 1941K.F. GallimoreMachine toolhorizontal boring mills
2,263,404Nov. 18, 1941O.W. Barker, J.B. ArmitageBoring and Milling Machinemilling machines
2,318,336May 04, 1943L.L. SchauerTapping machinetapping machines
2,323,488Jul. 06, 1943L.L. SchauerAutomatic reverse for tapping machinestapping machines
2,339,604Jan. 18, 1944R.H. McClellan, C.E. LindenHydraulic gear shifting and driving systemradial drill presses
2,428,309Sep. 30, 1947K.F. GallimoreBoring machinehorizontal boring mills
2,836,086May 27, 1958W.G. HoelscherClamping and elevating apparatus for machine toolsradial drill presses
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