| All Patents in class 81/179 |
Patents 31 -
45
of 73
      |
| Number | Date | Patentee | Title | Type |
| 521,076 | Jun. 05, 1894 | A. Bareis | Wrench | alligator wrenches |
| 542,012 | Jul. 02, 1895 | C.L. Dunham | Pipe Wrench | pipe wrenches |
| 546,295 | Sep. 17, 1895 | C. Black | Improvements in Sliding-Jaw Wrenches | pipe wrenches |
| 560,298 | May 19, 1896 | W.L. Murphey | Wrench | pipe wrenches |
| 576,454 | Feb. 02, 1897 | J.H. Jenner | Wrench | alligator wrenches |
| 577,770 | Feb. 23, 1897 | G.W. Martin | Wrench | pipe and nut combination wrenches |
| 583,741 | Jun. 01, 1897 | K. Gerhardt | Wrench | self-adjust wrenches |
| 589,668 | Sep. 07, 1897 | C.M. Tussing, H.S. Noble | Wrench | pipe and nut combination wrenches |
| 632,555 | Sep. 05, 1899 | C.L. Dunham | Wrench For Well-Drilling Tools | |
| 640,643 | Jan. 02, 1900 | J.H. Fahrney | Wrench | pipe and nut combination wrenches |
| 657,391 | Sep. 04, 1900 | T.H. Brosnihan | Wrench | pipe wrenches |
| 659,293 | Oct. 09, 1900 | R.F. Downey | Wrench | alligator wrenches |
| 667,572 | Feb. 05, 1901 | C. Peterson | Pipe Wrench | pipe wrenches |
| 669,742 | Mar. 12, 1901 | A. Dudly | Wedge-Grip Sliding-Jaw Wrench | quick adjust wrenches |
| 700,359 | May 20, 1902 | J.D. McFarland, Jr. | Wrench | ratchet wrenches |
