| All Patents in class 81/104 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 22,947 | Feb. 15, 1859 | D.P. Foster | Foster's Unyielding Grip Wrench | pipe and nut combination wrenches |
| RE5,914 | Jun. 16, 1874 | D.P. Foster | Improvement in wrenches | pipe and nut combination wrenches |
| 282,298 | Jul. 31, 1883 | D.P. Foster | Pipe or Nut Wrench | pipe wrenches |
| 339,634 | Apr. 13, 1886 | D.P. Foster | Immprovements in Nut and Pipe Wrenches | pipe wrenches |
| 487,087 | Nov. 29, 1892 | D.H. Carpenter | Wrench | screw adjust wrenches |
| 489,455 | Jan. 10, 1893 | J.E. Kitson, G.W. Bufford | Pipe Wrench | pipe wrenches |
| 597,762 | Jan. 25, 1898 | J.M. Cochran | Wrench | pipe wrenches |
| 796,305 | Aug. 01, 1905 | E. Enderes | Improvement in Wrenches | wrench jaw components |
| 885,322 | Apr. 21, 1908 | J.M. Cochran | Pipe Wrench | pipe wrenches |
| 1,613,229 | Jan. 04, 1927 | J.E. Kenerson | Wrench | wrench jaw components |
| 1,662,002 | Mar. 06, 1928 | J.H. Dowd | Wrench | pipe wrenches |
| 2,555,395 | Jun. 05, 1951 | O.A. Capra | Rocking Fulcrum For Adjustable and Pivotal Outer Wrench Jaws | screw adjust wrenches |
