| All Patents in class 81/442 |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| 133,536 | Dec. 03, 1872 | W. Johnson | Wrench | wrenches |
| 141,794 | Aug. 12, 1873 | W. Johnson | Wrenches | wrenches |
| 148,629 | Mar. 17, 1874 | J.B. Smith | Bung-Bush Wrenches | wrenches |
| 214,755 | Apr. 29, 1879 | F.P. Bump | Wrench For Inserting Bung-Bush | wrenches |
| 218,106 | Aug. 05, 1879 | D. Ackerman | Bung-Bush Wrench | wrenches |
| 257,414 | May 02, 1882 | C. Trapp | Wrench For Bung Bushes | wrenches |
| 307,413 | Oct. 28, 1884 | H.A. Rueter | Wrench | wrenches |
| 972,604 | Oct. 11, 1910 | C.A. De Vaul | Wrench | quick adjust wrenches |
| 1,872,392 | Aug. 16, 1932 | H.G. Lien, W.A. Bishman | Wrench For Automobile Hub Caps | automotive specialty wrenches |
| 2,890,733 | Jun. 16, 1959 | S.B. Valiulis | Screw-holding screw driver | screwdrivers |
