| All Patents in class 81/176 |
Patents 31 -
45
of 46
      |
| Number | Date | Patentee | Title | Type |
| 609,146 | Aug. 16, 1898 | H.C. Hart | Wrench | bicycle or pocket wrenches |
| 618,859 | Feb. 07, 1899 | J. Gardiner | Wrench | screw adjust wrenches |
| 618,899 | Feb. 07, 1899 | W.M. Norcross | Wrench | quick adjust wrenches |
| 621,223 | Mar. 14, 1899 | J.B. Calef | Carriage Wrench | screw adjust wrenches |
| 628,838 | Jul. 11, 1899 | J.H. Neal | Wrench | screw adjust wrenches |
| 639,640 | Dec. 19, 1899 | M. Williams | Improvements in Pipe-Wrenches | pipe wrenches |
| 661,810 | Nov. 13, 1900 | F. Mossberg | Wrench | wrench jaw components |
| 695,072 | Mar. 11, 1902 | F. Mossberg | Improvements in Nut-Wrenches | bicycle or pocket wrenches |
| 701,584 | Jun. 03, 1902 | D.B. Lee | Wrench | wrench jaw components |
| 743,360 | Nov. 03, 1903 | M. Wenger | Wrench | screw adjust wrenches |
| 803,942 | Nov. 07, 1905 | J.H. Vinton | Pipe Wrench | pipe wrenches |
| 837,254 | Nov. 27, 1906 | M. Wenger | Wrench | screw adjust wrenches |
| 1,105,475 | Jul. 28, 1914 | C.D. Wilson | Wrench | quick adjust wrenches |
| 1,123,462 | Jan. 05, 1915 | J.E. Anderson, J. Anderson | Wrench | pipe and nut combination wrenches |
| 1,435,548 | Nov. 14, 1922 | J.P. Fleming, J.F. Oliver | Wrench | screw adjust wrenches |
