| All Patents in class 81/344 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 376,564 | Jan. 17, 1888 | V.J. Van Horn | Wrench | pipe wrenches |
| 936,980 | Oct. 12, 1909 | A. Bing | Tongs | blacksmith |
| 2,410,889 | Nov. 12, 1946 | R. Martines | Tool | pliers |
| 2,531,285 | Nov. 21, 1950 | E.L. Manspeaker | Wrench With Self-Adjusting Jaws | locking pliers |
| 2,592,803 | Apr. 15, 1952 | J.G. Heim | Release And Adjusting Means For Vise-Type Wrenches | locking pliers |
| 2,617,312 | Nov. 11, 1952 | B.O. Prentice | Mechanical Movement | locking pliers |
| 2,799,191 | Jul. 16, 1957 | W.A. Barnes | Multiple Range Compound Action Hand Tool | crimping tools |
