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| All Patents in class 81/121.1 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,512,220 | Apr. 23, 1985 | W.T. Pagac, M.L. Barnhill, III | Fast Lead Socket Wrench | wrench sockets | |
| 4,882,957 | Nov. 28, 1989 | B.P. Fleming, T.M. Vozenilek, R.B. Wright | Socket Wrench Opening | wrench sockets | |
| 4,993,289 | Feb. 19, 1991 | J.R. Parks | Drive Element with Drive Bore Having Compound Entry Surface | ||
| 5,117,714 | Jun. 02, 1992 | D.M. Sorbie, T.S. Severson, F. Mikic, W.T. Pagac | One-Piece, Open-End Wrenching Head with Serated Jaws | nut wrenches | |