| Patents for W. S. Duvall |
Patents 31 -
42
of 42
      |
| Number | Date | Patentee | Title | Type |
| 469,701 | Mar. 01, 1892 | A. Hullinger | Improvements in Ratchet-Wrenches | wrench sockets |
| 471,539 | Mar. 29, 1892 | J.S. Everitt | Wrench | cylinder tooth wrenches |
| 471,765 | Mar. 29, 1892 | D.D. Blount, N.M. Wever | Ratchet Railroad Track Wrench | ratchet wrenches |
| 472,132 | Apr. 05, 1892 | R.A. Marshall | Clevis | clevises |
| 472,153 | Apr. 05, 1892 | J.J. Tomey | Pipe And Rod Wrench | wrench combination tools |
| 472,556 | Apr. 12, 1892 | F.W. Simmons | Handle For Wrenches Or Other Tools | wrench handle components |
| 473,007 | Apr. 19, 1892 | C. Leach | Wrench | screw adjust wrenches |
| 473,617 | Apr. 26, 1892 | B.H. Dunlap | Socket Wrench | axle nut wrenches |
| 508,338 | Nov. 07, 1893 | J.K. Poole | Clevis Hook | clevises |
| 508,920 | Nov. 21, 1893 | L. Dahlstrom | Pipe Wrench | chain and strap wrenches |
| 513,580 | Jan. 30, 1894 | R. Beardsley, A.S. King | Pipe Or Rod Wrench | pipe tongs |
| 514,459 | Feb. 13, 1894 | W.H. Haire | Wrench | quick adjust wrenches |
