| All Patents in class 81/172 |
Patents 1 -
10
of 15
      |
| Picture | Number | Date | Patentee | Title |
 | 476,767 | Jun. 07, 1892 | A.K. Lovell | Wrench |
 | 620,738 | Mar. 07, 1899 | W.V. Chisholm | Wrench |
 | 642,155 | Jan. 30, 1900 | E. Campbell, G. Redford | Wrench |
 | 703,898 | Jul. 01, 1902 | J.C. Davison | Wrench |
 | 732,752 | Jul. 07, 1903 | L. Kules | Wrench |
 | 746,113 | Dec. 08, 1903 | C.S. Leland | Wrench |
 | 819,246 | May 01, 1906 | C.H. Noyes | Wrench |
 | 1,391,179 | Sep. 20, 1921 | G.E. Hemphill, E.J. Evans | Monkey Wrench |
 | 1,449,386 | Mar. 27, 1923 | G.E. Hemphill, E.J. Evans | Pipe Wrench |
 | 1,570,627 | Jan. 26, 1926 | W.H. Barber, E.J. Evans | Pipe Wrench |
