| All Patents in class 81/142 |
Patents 1 -
15
of 17
      |
| Number | Date | Patentee | Title | Type |
| 17,737 | Jul. 07, 1857 | J.H. Hathaway | Improvements in Slide-Wrenches | nut wrenches |
| 20,211 | May 11, 1858 | J. McKenzie | Improved Mode of Fixing the Movable Jaws of Adjustable Wrenches | wedge adjust wrenches |
| 172,240 | Jan. 11, 1876 | E.T. Barlow | Improvement in Monkey-Wrenches | quick adjust wrenches |
| 230,595 | Jul. 27, 1880 | G.H. Warren | Wrench | quick adjust wrenches |
| 273,017 | Feb. 27, 1883 | J.H. Bowen | Wrench | quick adjust wrenches |
| 347,157 | Aug. 10, 1886 | J.H. Bowers | Pipe and Nut Wrench | pipe and nut combination wrenches |
| 420,981 | Feb. 11, 1890 | F.A. Wegner | Carriage Wrench | axle nut wrenches that lock nut to wheel hub |
| 506,261 | Oct. 10, 1893 | H.J. Rosenberg | Wrench | nut wrenches |
| 526,476 | Sep. 25, 1894 | W.J. Wright | Wrench or Clamp Adjustment | quick adjust wrenches |
| 586,453 | Jul. 13, 1897 | A. Normand | Pocket Knife | knives and cutters |
| 618,506 | Jan. 31, 1899 | J.H. Hanson | Wrench | quick adjust wrenches |
| 674,767 | May 21, 1901 | J. Howell | Wrench | alligator wrenches |
| 1,055,724 | Mar. 11, 1913 | H.L. Dickson | Pipe Wrench | pipe wrenches |
| 1,245,017 | Oct. 30, 1917 | F.S. Batista, P.P. Perez | Improved Pipe Wrench | quick adjust wrenches |
| 1,539,987 | Jun. 02, 1925 | J.A. Bell | Adjustable Wrench | quick adjust wrenches |
