| All Patents in class 81/59.1 |
Patents 16 -
25
of 25
      |
| Number | Date | Patentee | Title | Type |
| 1,511,226 | Oct. 14, 1924 | S.O. Lawrence | Wrench | ratchet wrenches |
| 1,644,079 | Oct. 04, 1927 | W.J. O'Neill | Ratchet Wrench | ratchet wrenches |
| 1,859,600 | May 24, 1932 | J.H. Prettyman | Friction Clutch Mechanism | ratchet wrenches |
| 1,936,640 | Nov. 28, 1933 | E.M. Pfauser | Reversible Friction Clutch | ratchet wrenches |
| 2,003,155 | May 28, 1935 | E.M. Pfauser | Reversible Friction Clutch | ratchet wrenches |
| 2,469,572 | May 10, 1949 | L.E. Pratt | Reverisble Friction Clutch Wrench | ratchet wrenches |
| 2,719,447 | Oct. 04, 1955 | W.B. Ford | Ratchet Wrench | ratchet wrenches |
| 3,545,312 | Dec. 08, 1970 | T.F. Angquist | Reversible Cam Lock Driver | ratcheting screwdrivers |
| 6,311,584 | Nov. 06, 2001 | T.C. Chu | Ratchet wrench having an additional driving device | ratchet wrenches |
| 6,792,830 | Sep. 21, 2004 | M.L. Foster, M.T. DeKeuster | Unidirectional Ratchet Wrench | ratchet wrenches |
