| All Patents in class 81/175 |
Patents 16 -
30
of 69
      |
| Number | Date | Patentee | Title | Type |
| 206,851 | Aug. 13, 1878 | H.W. Atwater | Improvement in Clamps | clamps |
| 212,795 | Mar. 04, 1879 | D. Fisher | Pipe and Nut Wrench | wrench jaw components |
| 242,909 | Jun. 14, 1881 | J. Flanagan | Pipe Wrench | pipe wrenches |
| 281,318 | Jul. 17, 1883 | B.F. Stockford | Wrench | quick adjust wrenches |
| 283,675 | Aug. 21, 1883 | W.J. Sherman | Wrench | pipe wrenches |
| 285,449 | Sep. 25, 1883 | C.D. Newlin, C.D. Wells | Wrench | quick adjust wrenches |
| 288,432 | Nov. 13, 1883 | J.M. Harland | Wrench | screw adjust wrenches |
| 296,942 | Apr. 15, 1884 | J. Du Shane | Wrench | screw adjust wrenches |
| 298,043 | May 06, 1884 | N.W. Vandegrift | Wrench | pipe wrenches |
| 330,453 | Nov. 17, 1885 | R. Wolfe | Improvements in Tap-Wrenches | tap wrenches and die stocks |
| 351,550 | Oct. 26, 1886 | C.A. Weller | Clamping Device | lathe dogs |
| 352,433 | Nov. 09, 1886 | A.W. Ward | Wrench | pipe wrenches |
| 362,908 | May 10, 1887 | W.E. Taft | Wrench | screw adjust wrenches |
| 383,049 | May 15, 1888 | F. Frank, A.F. Garrett | Improvements in Combination Wrenches and Ratchet-Drills | ratchet wrenches |
| 404,619 | Jun. 04, 1889 | J.T. Hawkins | Pipe Wrench | alligator wrenches |
