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All Patents in class 408/121
Patents 1 - 15 of 36
First set of recordsNext set of recordsLast set of records
NumberDatePatenteeTitleType
5,894Oct. 31, 1848J. JohnsonHand-drillhand drills
20,728Jun. 29, 1858H.H. PackerHand-drillratchet braces
37,971Mar. 24, 1863L.H. OlmstedRatchet braceratchet braces
38,486May 12, 1863S. IngersollImproved Friction Clutchhand drills
39,496Aug. 11, 1863E.A. RaymondRatchet Drillratchet drills
42,560May 03, 1864J.C. ChapmanRatchet Drillratchet drills
RE2,140Jan. 02, 1866H.H. PackerImprovement in drillsratchet braces
52,106Jan. 16, 1866N.W. WoodburyImproved Wrench and Drillhand drills
57,466Aug. 28, 1866G.W. BishopImprovement in ratchet-drillsratchet braces
69,399Oct. 01, 1867W. BrownImprovement in Ratchet-Bracesratchet braces
71,463Nov. 26, 1867E. Davies, R.H. TauntonImproved tool for drilling metalsbraces
75,090Mar. 03, 1868T.A. WestonImprovement in Ratchet-Head and Leverratchet wrenches
78,183May 26, 1868W.C. BurchImproved hand-drillhand drills
79,115Jun. 23, 1868M. HaingueDrill-stock (engineer's)hand drills
128,430Jun. 25, 1872T.J. SloanImprovement in hand drilling-machinesbrace handles
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