| All Patents in class 81/156 |
Patents 16 -
30
of 33
      |
| Number | Date | Patentee | Title | Type |
| 396,857 | Jan. 29, 1889 | L.F. Carstensen | Wrench | screw adjust wrenches |
| 417,968 | Dec. 24, 1889 | A.J. Barber | Wrench | nut wrenches |
| 419,254 | Jan. 14, 1890 | W.S. Hoskins | Improvements in Monkey Wrenches | quick adjust wrenches |
| 502,514 | Aug. 01, 1893 | H.V. Gormley | Wrench | screw adjust wrenches |
| 513,354 | Jan. 23, 1894 | E.C. Wells | Monkey Wrench | quick adjust wrenches |
| 514,459 | Feb. 13, 1894 | W.H. Haire | Wrench | quick adjust wrenches |
| 531,628 | Jan. 01, 1895 | J.F. Fitzgerald | Wrench | quick adjust wrenches |
| 539,890 | May 28, 1895 | E.A. Cochran | Wrench | wrench adjustment types |
| 550,144 | Nov. 19, 1895 | A.B. Stone | Wrench | nut wrenches |
| 631,148 | Aug. 15, 1899 | J. Beeby | Wrench | quick adjust wrenches |
| 648,803 | May 01, 1900 | B. Shaw | Wrench | quick adjust wrenches |
| 723,958 | Mar. 31, 1903 | G.R. Lynch, F.G. Wetterstein | Wrench | screw adjust wrenches |
| 754,063 | Mar. 08, 1904 | F. Cary, C.E. Hawkins | Wrench | screw adjust wrenches |
| 799,194 | Sep. 12, 1905 | W.A. Schenk | Pipe Cutter, etc. | quick adjust wrenches |
| 855,891 | Jun. 04, 1907 | D.P. Kahle | Wrench | quick adjust wrenches |
