| All Patents in class 81/9.3 |
Patents 16 -
22
of 22
      |
| Number | Date | Patentee | Title | Type |
| 1,191,822 | Jul. 18, 1916 | W.H. Donahue, A. Peterson | Wrench | screw adjust wrenches |
| 1,266,053 | May 14, 1918 | W.B. Ross | Wire Stretching and Twisting Tool | pliers |
| 1,990,820 | Feb. 12, 1935 | H.A. Flader | Clamping tool | work holding |
| 2,188,161 | Jan. 23, 1940 | A.L. Rosenmund | Box Closing Tool | wire twisters |
| 2,312,400 | Mar. 02, 1943 | E.J. Govanus | Combination Band Pulling and Punching Tool | band opening and closing tools |
| 2,677,982 | May 11, 1954 | D.H. Brown, D. Arras | Tool for Spreading Hose Clamps | snap-ring tools |
| 3,216,291 | Nov. 09, 1965 | W.T. Madeira | Hose-Clamp Deforming Pliers | pliers |
