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All Patents of Type: hand drills
Patents 1 - 15 of 95
First set of recordsNext set of recordsLast set of records
NumberDatePatenteeTitleType
8,174XApr. 29, 1834C. BabbittStock screw drillhand 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
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
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
78,183May 26, 1868W.C. BurchImproved hand-drillhand drills
79,115Jun. 23, 1868M. HaingueDrill-stock (engineer's)hand drills
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