| All Patents in class 81/58 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 134,355 | Dec. 31, 1872 | W.C. Burch | Drills for Drilling Metals | ratchet drills |
| 176,338 | Apr. 18, 1876 | W.I. Noel | Wrench | ratchet wrenches |
| 440,473 | Nov. 11, 1890 | J.N. Farlow | Friction Wrench | ratchet wrenches |
| 470,001 | Mar. 01, 1892 | F.A. Howard | Screw-driver | spiral screwdrivers |
| 587,006 | Jul. 27, 1897 | C.H. Lambkin | Nut Wrench | ratchet wrenches |
| 6,889,579 | May 10, 2005 | D.P. Brown | Adjustable Gripping Tool | self-adjust wrenches |
| 7,992,470 | Aug. 09, 2011 | D.P. Brown | Adjustable gripping tool | self-adjust wrenches |
