| All Patents in class 81/98 |
Patents 16 -
30
of 97
      |
| Number | Date | Patentee | Title | Type |
| 187,928 | Feb. 27, 1877 | J. Shepard, W.M. Robinson, W.A. St. John | Pipe-Tongs | self-adjust wrenches |
| 191,666 | Jun. 05, 1877 | G. Fletcher | Pipe Wrench | pipe wrenches |
| 278,264 | May 22, 1883 | T. Patton | Improvements in Pipe Tongs or Wrenches | self-adjust wrenches |
| 282,768 | Aug. 07, 1883 | J.H. Pollard | Wrench for Holding and Turning Round Bodies | self-adjust wrenches |
| 289,188 | Nov. 27, 1883 | C.D. Volkmann | Pipe Wrench | pipe wrenches |
| 299,440 | May 27, 1884 | W.D. Peddycord, C.D. Volkmann | Pipe Wrench | pipe wrenches |
| 307,830 | Nov. 11, 1884 | A. Barbour | Pipe Wrench and Cutter Combined | wrench combination tools |
| 321,038 | Jun. 30, 1885 | G.B. Koons | Pipe Tongs | pipe wrenches |
| 327,559 | Oct. 06, 1885 | A. Langstrom | Wrench | wrench jaw components |
| 328,167 | Oct. 13, 1885 | R.E. Williams | Pipe Wrench | pipe wrenches |
| 329,642 | Nov. 03, 1885 | C.V. Greenamyer | Car Mover | |
| 333,836 | Jan. 05, 1886 | J.E. Davis | Pipe Wrench | self-adjust wrenches |
| 336,985 | Mar. 02, 1886 | A.W. Becker | Combined Bolt Holder and Pipe Wrench | pipe wrenches |
| 356,986 | Feb. 01, 1887 | J. Clark | Pipe Wrench | pipe wrenches |
| 362,278 | May 03, 1887 | W. Humphreys | Pipe and Nut Wrench | pipe wrenches |
