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All Patents in class 408/193
Patents 1 - 14 of 14
First set of recordsLast set of records
NumberDatePatenteeTitleType
74,870Feb. 25, 1868P.A. WhitneyDrill and Countersinkmetalworking countersinks
92,261Jul. 06, 1869R.P. ButtlesImprovement in Countersinkcountersinks
94,416Aug. 31, 1869M. JincksImprovement in Plug-Cuttercountersinks
137,373Apr. 01, 1873F. JonasAdjustable Countersink Bit-Assemblycountersinks
267,590Nov. 14, 1882A.O. RevenaughBit and countersinkcountersinks
298,248May 06, 1884A.J. SmartCombined Drill and Countersinkcountersinks
303,053Aug. 05, 1884C.P. RussellCombined Drill and Countersinkcountersinks
385,791Jul. 10, 1888F.B. CarpenterCombined Bit, Countersink, and Screw-Drivercombination tools
421,218Feb. 11, 1890M. WoodCountersink/Counterbore Bitcountersinks
431,610Jul. 08, 1890E.T. MuellerReamer Attachment for Die Stocksreamers
444,161Jan. 06, 1891F.J. RocheCombined Screwdriver, Gimlet & Reamer Bitcountersinks
532,472Jan. 15, 1895S.B. MinnichCountersink-toolcountersinks
695,559Mar. 18, 1902W. JackmondReamertapered reamers
1,279,302Sep. 17, 1918J.M. DunlapDrill Gage and Countersinkdrill depth stops
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