| All Patents in class 81/99 |
Patents 76 -
90
of 110
      |
| Number | Date | Patentee | Title | Type |
| 728,945 | May 26, 1903 | J. Levy | Ratchet Pipe Wrench | self-adjust wrenches |
| 732,858 | Jul. 07, 1903 | D.H. Irland | Wrench | pipe wrenches |
| 739,316 | Sep. 22, 1903 | D.H. Irland | Pipe Wrench | pipe wrenches |
| 754,509 | Mar. 15, 1904 | J.C. Snider | Combined Pipe and Nut Wrench | self-adjust wrenches |
| 800,850 | Oct. 03, 1905 | F.A. Irland, D.H. Irland | Pipe Wrench | pipe wrenches |
| 845,187 | Feb. 26, 1907 | J. MacLean | Wrench | self-adjust wrenches |
| 868,126 | Oct. 15, 1907 | C.W. Walker, J.E. Richards | Pipe Wrench | pipe wrenches |
| 868,127 | Oct. 15, 1907 | J.E. Richards | Pipe Wrench | pipe wrenches |
| 875,724 | Jan. 07, 1908 | E.E. Mullinix | Combination Tool | combination tools |
| 959,322 | May 24, 1910 | W. DuCharme | Wrench | pipe wrenches |
| 1,097,043 | May 19, 1914 | F.M. Nolder | Wrench | self-adjust wrenches |
| 1,097,181 | May 19, 1914 | S.T. McLellan | Wrench | quick adjust wrenches |
| 1,188,721 | Jun. 27, 1916 | F. Bittner | Pipe Wrench | pipe wrenches |
| 1,245,017 | Oct. 30, 1917 | P.P. Perez, F.S. Batista | Improved Pipe Wrench | quick adjust wrenches |
| 1,276,596 | Aug. 20, 1918 | W.O. Vivarttas | Work Gripping Tool | self-adjust wrenches |
