| All Patents in class 81/141 |
Patents 16 -
30
of 36
      |
| Number | Date | Patentee | Title | Type |
| 488,431 | Dec. 20, 1892 | J.H. Gregory | Wrench | pipe wrenches |
| 491,056 | Jan. 31, 1893 | C.H. Kraft | Wrench | pipe wrenches |
| 491,255 | Feb. 07, 1893 | W.J. Walker | Pipe Wrench | quick adjust wrenches |
| 513,916 | Jan. 30, 1894 | E.H. Goslin | Wrench | pipe wrenches |
| 560,220 | May 19, 1896 | K.A. Klose | Pipe Wrench | pipe wrenches |
| 566,655 | Aug. 25, 1896 | C.B. Campbell | Monkey Wrench | quick adjust wrenches |
| 567,945 | Sep. 15, 1896 | E.L. Keith | Lock Jaw Wrench | quick adjust wrenches |
| 586,473 | Jul. 13, 1897 | R.R. Barrow | Wrench | quick adjust wrenches |
| 587,974 | Aug. 10, 1897 | J.E. Colton, E.L. Keith | Lock Jaw Wrench | quick adjust wrenches |
| 595,252 | Dec. 07, 1897 | E.B. Sankey | Wrench | quick adjust wrenches |
| 595,879 | Dec. 21, 1897 | G.L. Ives | Pipe Wrench | pipe wrenches |
| 599,001 | Feb. 15, 1898 | L.N. Leonard | Combined Pipe and Nut Wrench | pipe jaw attachments for wrenches |
| 599,895 | Mar. 01, 1898 | W.C. Stranahan, C.C. English | Wrench | quick adjust wrenches |
| 636,230 | Oct. 31, 1899 | M.L. Keagle | Wrench | quick adjust wrenches |
| 645,074 | Mar. 13, 1900 | C.C. English | Wrench | quick adjust wrenches |
