| All Patents in class 81/102 |
Patents 1 -
15
of 33
      |
| Number | Date | Patentee | Title | Type |
| 159,234 | Jan. 26, 1875 | J.B. Westwick | Combined Pipe-Tongs and Wrench | pipe tongs |
| 179,276 | Jun. 27, 1876 | G.H. Crosby | Improvement in Pipe Dogs or Wrenches | pipe wrenches |
| 182,492 | Sep. 19, 1876 | H.C. Stouffer | Pipe-Wrench | pipe tongs |
| 232,581 | Sep. 21, 1880 | D. Weir | Wrench | pipe wrenches |
| 270,741 | Jan. 16, 1883 | F. Cajar | Pipe Wrench | pipe wrenches |
| 359,722 | Mar. 22, 1887 | J.F. Guthrie, Jr. | Improvement In Pipe-Wrenches | pipe wrenches |
| 383,544 | May 29, 1888 | J. Rose | Pipe Wrench | pipe wrenches |
| 411,807 | Oct. 01, 1889 | J.F. Guthrie, Jr. | Flange Wrench | flange wrenches |
| 421,154 | Feb. 11, 1890 | G.F. Shevlin, J.H. Baker | Wrench | pipe wrenches |
| 429,258 | Jun. 03, 1890 | T.W. Bryant | Pipe Wrench | pipe wrenches |
| 446,592 | Feb. 17, 1891 | D. McManus, T.J. Duncan | Pipe Wrench | pipe wrenches |
| 460,008 | Sep. 22, 1891 | H. James, R.S. Gillespie | Pipe Wrench | pipe wrenches |
| 461,750 | Oct. 20, 1891 | H. James, R.S. Gillespie | Pipe Wrench | pipe wrenches |
| 481,110 | Aug. 16, 1892 | H. James, R.S. Gillespie | Wrench | pipe wrenches |
| 489,803 | Jan. 10, 1893 | H. James, R.S. Gillespie | Pipe Wrench | pipe wrenches |
