| All Patents in class 81/330 |
Patents 1 -
10
of 11
      |
| Picture | Number | Date | Patentee | Title |
 | 522,471 | Jul. 03, 1894 | J. Kohler | Combination Tool For Pipe Fitting |
 | 587,974 | Aug. 10, 1897 | J.E. Colton, E.L. Keith | Lock Jaw Wrench |
| | 750,994 | Feb. 02, 1904 | M. McKinley | Wrench |
 | 831,264 | Sep. 18, 1906 | B. Charnock | Wrench |
 | 1,086,078 | Feb. 03, 1914 | H.R. Palmer | Plier Wrench |
 | 2,206,251 | Jul. 02, 1940 | F.C. Fischer | Wrench |
 | 2,325,245 | Jul. 27, 1943 | J. Hahn | Plier Type Wrench |
 | 2,366,015 | Dec. 26, 1944 | F.C. Fischer | Wrench |
 | 2,496,308 | Feb. 07, 1950 | R.J. Champayne, W.E. Pugh | Lever Actuated Pivoted Jaw Wrench |
 | 2,524,376 | Oct. 03, 1950 | M.A. Clark | Sliding Side Jaw Wrench Having Toggle Means for Moving and Locking the Movable Jaw Relative to the Fixed Jaw |
