| All Patents in class 81/179 |
Patents 1 -
15
of 73
      |
| Number | Date | Patentee | Title | Type |
| 23,857 | May 03, 1859 | G.B. Phillips | Improvement in Slide-Wrenches for Turning Gas Pipes and Other Round Articles | pipe wrenches |
| 61,715 | Feb. 05, 1867 | J.W. Close | Improvement in Pipe Wrenches | wrench jaw components |
| 65,679 | Jun. 11, 1867 | D.A. Kellogg | Improvement in Monkey-Wrench | quick adjust wrenches |
| 91,838 | Jun. 29, 1869 | T. Garrick | Improved Wrench | wrench jaw components |
| 140,561 | Jul. 01, 1873 | G. Warsop | Pipe Wrenches | pipe wrenches |
| 194,716 | Aug. 28, 1877 | E.B. O'Kelly | Pipe Tongs or Wrenches | pipe wrenches |
| 232,581 | Sep. 21, 1880 | D. Weir | Wrench | pipe wrenches |
| 232,923 | Oct. 05, 1880 | A. Beard | Wrench | pipe wrenches |
| 250,367 | Dec. 06, 1881 | I. Kinney | Wrench & Pipe Cutter | pipe and nut combination wrenches |
| 269,072 | Dec. 12, 1882 | J. Lee | Pipe Wrench | quick adjust wrenches |
| 310,818 | Jan. 13, 1885 | J.F. Guthrie | Pipe Wrench | pipe wrenches |
| 323,017 | Jul. 28, 1885 | G.S. Armstrong | Pipe and Monkey Wrench | pipe and nut combination wrenches |
| 365,019 | Jun. 14, 1887 | C.T. Phillips | Pipe Wrench | pipe wrenches |
| 385,595 | Jul. 03, 1888 | B.F. Chappell | Improvement in Pipe-Wrenches | alligator wrenches |
| 396,970 | Jan. 29, 1889 | J. Van Ausdall | Wrench | pipe wrenches |
