| All Patents in class 81/174 |
Patents 1 -
15
of 54
      |
| Number | Date | Patentee | Title | Type |
| 9,030X | Aug. 17, 1835 | S. Merrick | Improvement in screw wrench | nut wrenches |
| RX-38 | May 17, 1842 | S. Merrick | Improvement in the Screw Wrenches | nut wrenches |
| RE38 | May 17, 1842 | S. Merrick | Improvement in Screw Wrenches | nut wrenches |
| 5,707 | Aug. 15, 1848 | S. Merrick | Improved screw wrench | nut wrenches |
| RE207 | Nov. 25, 1851 | S. Merrick | Wrench | nut wrenches |
| 11,308 | Jul. 11, 1854 | J.C. Terry | Improved Screw-Wrench | nut wrenches |
| 23,751 | Apr. 26, 1859 | A.D. Briggs | Improvement in Screw-Wrenches | screw adjust wrenches |
| 35,740 | Jun. 24, 1862 | G.B. Phillips | Improvements in Wrenches | wrench adjustment locks |
| 55,739 | Jun. 19, 1866 | G.C. Taft | Improvement in Screw-Wrenches | screw adjust wrenches |
| 56,731 | Jul. 31, 1866 | J.F. Dodge | Improvement in Wrenches | wrench jaw components |
| 68,128 | Aug. 27, 1867 | J.A. Talpey | Improvement in Wrench | wrenches |
| 81,442 | Aug. 25, 1868 | W.B. Weaver | Improvement in Saw Set | saw sets |
| 82,085 | Sep. 15, 1868 | L. Chapman | Improvement in Wrenches | nut wrenches |
| 86,138 | Jan. 26, 1869 | R.A. Copeland | Pipe Wrench & Cutter | combination tools |
| 94,107 | Aug. 24, 1869 | M. Hastings | Pipe Wrench | pipe tongs |
