| All Patents in class 81/186 |
Patents 1 -
15
of 203
      |
| Number | Date | Patentee | Title | Type |
| 6,077 | Jan. 30, 1849 | A. Hay | Improved Hinged Claw-Wrench | self-adjust wrenches |
| 34,498 | Feb. 25, 1862 | A.H. Pierce, F. Hollen | Nut Wrench | nut wrenches |
| 52,155 | Jan. 23, 1866 | E.P. Furlong | Improvement in Wrenches | wrench jaw components |
| 54,040 | Apr. 17, 1866 | T. Symonds | Double-Jawed Wrench | wrench jaw components |
| 56,628 | Jul. 24, 1866 | R.S. Stenton | Improvement in Wrenches | nut wrenches |
| 56,731 | Jul. 31, 1866 | J.F. Dodge | Improvement in Wrenches | wrench jaw components |
| 65,588 | Jun. 11, 1867 | A.M. Olds | Improved Self-Adjusting Wrench | pipe wrenches |
| 68,128 | Aug. 27, 1867 | J.A. Talpey | Improvement in Wrench | wrenches |
| 78,047 | May 19, 1868 | J.L. Brierly | Improvement in Pipe-Wrench and Cutter | pipe wrenches |
| 79,027 | Jun. 16, 1868 | A. Thayer | Clinchers | combination tools |
| 79,306 | Jun. 30, 1868 | C. Lyon, W. Bradshaw | Wrench | wrenches |
| 84,142 | Nov. 17, 1868 | W.S. Smoot | Improved Form of Combined Claw-Hammer, Wrench and Screw-Driver | combination tools |
| 115,678 | Jun. 06, 1871 | W.H. Barwick | Improvement in Pipe-Wrenches | pipe tongs |
| 120,475 | Oct. 31, 1871 | A.H. Woodruff | Improvement in Pipe Wrench Attachment for Monkey Wrenches | pipe jaw attachments for wrenches |
| 120,641 | Nov. 07, 1871 | I.S. Hamilton | Improvement in Pipe Wrenches | pipe wrenches |
