| All Patents in class 81/90.2 |
Patents 1 -
15
of 23
      |
| Number | Date | Patentee | Title | Type |
| 86,181 | Jan. 26, 1869 | P.A. Samuel | Universal Key or Extensible Wrench | self-adjust wrenches |
| 231,831 | Aug. 31, 1880 | W. Wortenbe, J.A. Mell | Self-Adjusting Wrench | self-adjust wrenches |
| 296,540 | Apr. 08, 1884 | D.M. De Silva | EUREKA ALLIGATOR PIPE TONG OR WRENCH | pipe wrenches |
| 380,072 | Mar. 27, 1888 | A.R. Wygle | Pipe Wrench | pipe wrenches |
| 410,384 | Sep. 03, 1889 | C.A. Swanson | Wrench | alligator wrenches |
| 518,818 | Apr. 24, 1894 | F. Roberts, E.M. Jackson | Pipe Wrench | pipe wrenches |
| 531,125 | Dec. 18, 1894 | H. Lind | Pipe Wrench | pipe wrenches |
| 553,362 | Jan. 21, 1896 | J.K. Sheffy | Pipe Wrench | pipe wrenches |
| 568,966 | Oct. 06, 1896 | E.E. Boyd, J.T. Wiley | Pipe Wrench | pipe wrenches |
| 613,573 | Nov. 01, 1898 | C. Jacoby, Sr. | Wrench | wrenches |
| 615,926 | Dec. 13, 1898 | W. Tyack | Pipe Wrench | pipe wrenches |
| 620,785 | Mar. 07, 1899 | R. Klatt | Wrench | self-adjust wrenches |
| 741,394 | Oct. 13, 1903 | J. Bystrom | Wrenches For Grasping Pipes, Rods or Nuts | self-adjust wrenches |
| 824,082 | Jun. 19, 1906 | H.L. Reynolds | Wrench | pipe and nut combination wrenches |
| 1,054,700 | Mar. 04, 1913 | W.H. Lutz | Compression Wrench | chain and strap wrenches |
