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All Patents in class 408/237
Patents 1 - 15 of 82
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NumberDatePatenteeTitleType
68,827Sep. 10, 1867A. Whipple, E.S. YoungMetal Drillportable metal drilling machines
184,060Nov. 07, 1876A. BoxRadial Drillradial drill presses
441,509Nov. 25, 1890F. SchoffDrill-supportportable metal drilling machines
462,309Nov. 03, 1891W.E. GangDrill Pressdrill presses
511,736Dec. 26, 1893C.L. LibbyTaper Attachment and Feed Mechanism for Vertical Boring Millvertical boring mills
513,128Jan. 23, 1894A.J. MillRadial drillradial drill presses
515,237Feb. 20, 1894J.P. LavigneDrilling Machinedrill presses
515,988Mar. 06, 1894C.H. BaushDrilling-machineradial drill presses
515,989Mar. 06, 1894C.H. BaushDrilling-machineradial drill presses
560,171May 12, 1896A.J. OehringMultiple drillmultiple spindle drill presses
612,946Oct. 25, 1898W.E. HotchkissSupport for drilling-machinesdrill presses
676,197Jun. 11, 1901A. MillRadial drillradial drill presses
676,389Jun. 11, 1901A. MillRadial Drillradial drill presses
679,672Jul. 30, 1901W. HermanDrilling-machineradial drill presses
694,510Mar. 04, 1902S.F. WiseDouble-spindle drawer-pull boring-machinewood drilling and boring
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