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All Patents of Type: drill chucks
Patents 1 - 15 of 58
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NumberDatePatenteeTitleType
42,592May 03, 1864S.A. MorseImproved colletdrill chucks
44,067Sep. 06, 1864E.B. BeachImproved self-centering chuckdrill chucks
RE2,104Nov. 14, 1865E.B. BeachSelf-centering chuckdrill chucks
56,059Jul. 03, 1866F.G. JohnsonImprovement in Drill-Chucksdrill chucks
78,916Jun. 16, 1868E.H. BabcockDrill Chuckdrill chucks
141,978Aug. 19, 1873T.R. AlmondImprovement in chucksdrill chucks
150,672May 12, 1874G.D. BelcherImprovement in drill-chucksdrill chucks
173,152Feb. 08, 1876T.R. AlmondImprovement in Drill-Chucksdrill chucks
194,109Aug. 14, 1877H.L. PrattImprovement in Drill-Chucksdrill chucks
194,122Aug. 14, 1877H.B. BeachImprovement in drill-chucksdrill chucks
234,109Nov. 02, 1880J.W. BurkholderHand-drilleggbeater drills
243,806Jul. 05, 1881D. SlateDrill-chuckdrill chucks
262,771Aug. 15, 1882J.H. HoagueDrill-chuckdrill chucks
284,275Sep. 04, 1883J. ChantrellBit-stockdrill chucks
333,192Dec. 29, 1885J. BalzBrace/Drill Chuckbrace chucks
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