| All Patents in class 81/77 |
Patents 31 -
38
of 38
      |
| Number | Date | Patentee | Title | Type |
| 644,033 | Feb. 20, 1900 | F. Schrader | Combined Spanner and Sliding-Jaw Wrench | bicycle or pocket wrenches |
| 761,797 | Jun. 07, 1904 | F.W. Vogel | Wrench | self-adjust wrenches |
| 873,977 | Dec. 17, 1907 | J.J. Albrecht | Ratchet Wrench | ratchet wrenches |
| 975,609 | Nov. 15, 1910 | J.H. Ferguson | Wrench | screw adjust wrenches |
| 1,123,462 | Jan. 05, 1915 | J.E. Anderson, J. Anderson | Wrench | pipe and nut combination wrenches |
| 1,217,217 | Feb. 27, 1917 | W.H. Reagan, Jr. | Wrench | angle adjustable wrenches |
| 1,261,540 | Apr. 02, 1918 | H.V. Hughes | Wrench | quick adjust wrenches |
| 1,321,187 | Nov. 11, 1919 | H.G. Brower | Wrench | quick adjust wrenches |
