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All Patents in class 408/226
Patents 1 - 15 of 22
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NumberDatePatenteeTitleType
1,816Oct. 10, 1840J. LindlyImprovement in Machines for Cutting Screws Upon the ends of the Rails of Bedsteadswoodworking horizontal borers
22,394Dec. 21, 1858N.S. White, A. DenioMethod of attaching cutting-tips to auger-shankstool making machines
81,607Sep. 01, 1868P. CunninghamBit for Mortising Machinedrill bits
118,178Aug. 22, 1871B. ArnoldImprovement in Twist-Drillstwist drill bits
270,258Jan. 09, 1883J.H. StickneyBrad-awlgimlets
339,544Apr. 06, 1886S.P. GrahamCombined boring-tool and holderdrill bits
352,139Nov. 09, 1886J. LeuenbergerWasher or gasket cutter
527,064Oct. 09, 1894M.C. JohnsonDriving-clutchmetal lathes
717,199Dec. 30, 1902G.H. HollmTapping Fixture
764,609Jul. 12, 1904W. LodgeBoring Toollathe tools
868,812Oct. 22, 1907L. RueggBit holder
1,264,370Apr. 30, 1918L. GroffDrillmetalworking twist drills
1,283,740Nov. 05, 1918C.B. GroffDrill
1,712,876May 14, 1929J.V. DolezalWire-Threading Bithollow bits
2,029,447Feb. 04, 1936H.M. SwainAuger Bitauger bits
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