| All Patents in class 408/121 |
Patents 61 -
67
of 67
      |
| Number | Date | Patentee | Title | Type |
| 613,950 | Nov. 08, 1898 | E.C. Lewis, H.G. Hoadley, H.D. Williams | Lever and Ratch Attachment | ratchet wrenches |
| 620,461 | Feb. 28, 1899 | C.H. Lambkin | Wrench | ratchet wrenches |
| 822,687 | Jun. 05, 1906 | J.R. Neilson | Combined Ratchet Wrench and Drill | ratchet wrenches |
| 894,228 | Jul. 28, 1908 | W.D. Price, J.A. Dreher, A.E. Welker | Boring machine | drilling and boring |
| 914,012 | Mar. 02, 1909 | P. Armstrong | Ratchet Drill | drill accessories |
| 1,021,558 | Mar. 26, 1912 | C.J. Scholler | Hand Ratchet for Drills, &c. | drill accessories |
| 2,646,687 | Jul. 28, 1953 | W.E. De Wald | Helical shaft machine | spiral screwdrivers |
