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All Patents in class 408/241R
Patents 1 - 15 of 43
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NumberDatePatenteeTitleType
3,645Jul. 01, 1844P. BaylorMethod of securing boring-machines to the article to be boreddrilling and boring
6,484May 29, 1849W.H. WillcoxBoring-machineshipwright
6,909Nov. 27, 1849J.H. AldrichImprovement in boring-machinesdrilling and boring
38,898Jun. 16, 1863G.W. GouldImproved power mortising-machinemortising machines
66,672Jul. 16, 1867P. BlaisdellImprovement in upright drillsdrill presses
92,983Jul. 27, 1869W.C. MarrImprovement in combined drill and saw-gummersaw gummers
114,229Apr. 25, 1871W.H. ThorneImprovement in Portable Drilling-Machinesdrill presses
215,744May 27, 1879W. HeynAuger Bit with Detachable Tipauger bits
285,726Sep. 25, 1883J. Barnes, W.F. BarnesMachinist drill pressdrill presses
310,563Jan. 13, 1885A.S. DavisScroll-sawing machinescrollsaws
461,951Oct. 27, 1891F.L. Eberhardt, U. EberhardtColumn Drill Press
524,906Aug. 21, 1894A. McDougallCombination Screw-Driver, Auger, and Countersink
533,407Jan. 29, 1895E.L. BartonThread-cutting brace
586,419Jul. 13, 1897A. ColletTap for Cutting Wood Threadsdrill bits
639,262Dec. 19, 1899A.S. Smith, J. MillsMetal Drillradial drill presses
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