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All Patents of Type: hand drills
Patents 1 - 15 of 91
First set of recordsNext set of recordsLast set of records
9,814XJun. 30, 1836J. TaylorBit stockhand drills
5,894Oct. 31, 1848J. JohnsonHand-drillhand drills
11,123Jun. 20, 1854C.S. HarrisImprovement in producing continuous circular from reciprocating rectilinear motionhand drills
11,787Oct. 10, 1854S. IngersollPawl Drillhand drills
16,938Mar. 31, 1857A.W. StreeterMethod of constructing bit-stockshand drills
24,894Jul. 26, 1859G.I. WashburnBoring-toolhand drills
36,135Aug. 12, 1862E. BeemanDrill with multiple pulleyshand drills
38,486May 12, 1863S. IngersollImproved Friction Clutchhand drills
39,151Jul. 07, 1863S.U. KingHead bearing surface on bit stockhand drills
52,106Jan. 16, 1866N.W. WoodburyImproved Wrench and Drillhand drills
54,248Apr. 24, 1866N.P. EddyImprovement in machine-drillshand drills
68,071Aug. 27, 1867D.F. HartfordImproved Bow-Drill Stockhand drills
68,787Sep. 10, 1867C.T. PoultonImproved Brace for Boring, Wrenching, etc.wrench jaw components
72,632Dec. 24, 1867D.F. HartfordImprovement in Stringing Bow-Drill Stockshand drills
76,956Apr. 21, 1868J. SwanImprovement in auger-handleshand drills
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