| All Patents in class 81/138 |
Patents 1 -
15
of 23
      |
| Number | Date | Patentee | Title | Type |
| 148,965 | Mar. 24, 1874 | A.E. Lindsley | Wrenches | quick adjust wrenches |
| 149,840 | Apr. 21, 1874 | W.H. Crittendon | Wrenches | quick adjust wrenches |
| 302,760 | Jul. 29, 1884 | T. Mokler | Pipe Wrench | pipe wrenches |
| 306,439 | Oct. 14, 1884 | B.F. Stockford | Wrench | quick adjust wrenches |
| 306,440 | Oct. 14, 1884 | M. Watson, L.S. Stone | Envelope Opener, Paper Cutter, &c. | rules |
| 389,666 | Sep. 18, 1888 | B. Reagan | Improvements in Pipe Tongs | pipe tongs |
| 430,656 | Jun. 24, 1890 | E.E. King | Combination Nut and Pipe Wrench | pipe and nut combination wrenches |
| 431,081 | Jul. 01, 1890 | B.F. Stockford | Nut Wrench | nut wrenches |
| 498,782 | Jun. 06, 1893 | J. Geisler | Nut Wrench | nut wrenches |
| 502,997 | Aug. 08, 1893 | E.S. Pratt | Monkey Wrench | screw adjust wrenches |
| 552,740 | Jan. 07, 1896 | W.L. Bedford | Wrench | quick adjust wrenches |
| 576,109 | Feb. 02, 1897 | W.C. Gilmour | Wrench | quick adjust wrenches |
| 592,666 | Oct. 26, 1897 | E.B. Sankey | Monkey Wrench | quick adjust wrenches |
| 609,388 | Aug. 16, 1898 | W.C. Flint | Wrench | quick adjust wrenches |
| 614,993 | Nov. 29, 1898 | D.A. Seamans | Wrench | quick adjust wrenches |
