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All Patents in class 408/9
Patents 1 - 12 of 12
First set of recordsLast set of records
596,471Jan. 04, 1898J.C. BonnettAutomatic Overhead Joist Boring Machineportable timber borers
966,217Aug. 02, 1910F.W. KingElectric drilldrill presses
1,550,609Aug. 18, 1925W.R. Fox, H.D. CorwinMetal-working machine
1,607,614Nov. 23, 1926J.H. GrahamTapping machinetapping machines
2,000,553May 07, 1935C.R. AldenMachine toolhorizontal boring mills
2,089,228Aug. 10, 1937J.H. McKewen, L.L. SchauerCombination drilling and tapping controltapping machines
2,189,422Feb. 06, 1940G.W. IrwinCombined drilling and tapping machinedrill presses
2,253,413Aug. 19, 1941H.R. YoungSpindle Drive Control for Machine Toolsmachine tool controls
3,461,472Aug. 19, 1969H.J. Baechle, W.K. Behrendt, R.K. SedgwickMachine tool with automatic tapping controlmilling machines
4,077,736Mar. 07, 1978M.L. HutchensDrill speeder for machine tools
4,449,866May 22, 1984R.E. Stobbe, E.R. LohneisServo-controlled spindle drive system
4,632,612Dec. 30, 1986R.J. LoerchSpindle orientation apparatus
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