| All Patents in class 81/91 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 1,643,633 | Sep. 27, 1927 | J.V. Eck | Open-end wrench of the adjustable-jaw type | screw adjust wrenches |
| 2,570,991 | Oct. 09, 1951 | M.F. Stellinger | Self-adjusting wrench for nuts or like polygonal objects | self-adjust wrenches |
| 2,647,425 | Aug. 04, 1953 | S.O. Mortensen | Self-adjusting wrench for nuts and like polygonal objects | self-adjust wrenches |
| 2,708,384 | May 17, 1955 | M. Mann | Wrench having box type pivotable jaws ratchetable on workpiece | wrench jaw components |
| 2,823,568 | Feb. 18, 1958 | M. Mann | Wrench with box-type pivotable jaws ratchetable on workpiece | ratchet wrenches |
