| All Patents in class 81/179 |
Patents 1 -
10
of 73
      |
| Picture | Number | Date | Patentee | Title |
 | 23,857 | May 03, 1859 | G.B. Phillips | Improvement in Slide-Wrenches for Turning Gas Pipes and Other Round Articles |
 | 61,715 | Feb. 05, 1867 | J.W. Close | Improvement in Pipe Wrenches |
 | 65,679 | Jun. 11, 1867 | D.A. Kellogg | Improvement in Monkey-Wrench |
 | 91,838 | Jun. 29, 1869 | T. Garrick | Improved Wrench |
 | 140,561 | Jul. 01, 1873 | G. Warsop | Pipe Wrenches |
 | 194,716 | Aug. 28, 1877 | E.B. O'Kelly | Pipe Tongs or Wrenches |
 | 232,581 | Sep. 21, 1880 | D. Weir | Wrench |
 | 232,923 | Oct. 05, 1880 | A. Beard | Wrench |
 | 250,367 | Dec. 06, 1881 | I. Kinney | Wrench & Pipe Cutter |
 | 269,072 | Dec. 12, 1882 | J. Lee | Pipe Wrench |
