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All Patents in class 72/374
Patents 1 - 11 of 11
First set of recordsLast set of records
NumberDatePatenteeTitleType
56,602Jul. 24, 1866H.W. PellImproved Dies for Forming the Heads of Wrencheswrench jaw components
66,009Jun. 25, 1867J.S. FarnsworthImprovement in Dies for Swaging and Punching the Jaws of Wrencheswrench jaw components
113,743Apr. 18, 1871A.G. CoesImprovement in the Modes of Forming the Heads of Wrench-Barswrench jaw components
123,554Feb. 13, 1872L. ChapmanImprovment in the Manufacture of Wrench-Headstool making machines
137,052Mar. 25, 1873L. ChapmanImprovement in Dies for Forming Wrench-Headstool making machines
208,862Oct. 08, 1878J. SwanImprovement in the Manufacture of Auger-Bitsmaking drills and augers
341,915May 18, 1886E.R. Lawton, S.E. JeraldsManufacture of Handles for Cutlery
1,595,588Aug. 10, 1926W.L. TuttleMethod and Apparatus for Making Wrench Socketsmaking wrenches
2,182,922Dec. 12, 1939E.A. HeschelMethod of Producing a Socket Wrench Headwrench sockets
2,417,569Mar. 18, 1947H.T. RiceMethod and Apparatus for Press Forging Wrench Sockets and the Likemaking wrenches
3,121,352Feb. 18, 1964W.B. McCardellTooth Forming Method and Apparatusgear cutting tools
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