| All Patents in class 81/436 |
Patents 1 -
10
of 96
      |
| Picture | Number | Date | Patentee | Title |
 | 35,337 | May 20, 1862 | J. Thompson | Screw Driver |
 | 67,014 | Jul. 23, 1867 | J.A. Ayres | Improved Screw-Driver |
 | 70,923 | Nov. 12, 1867 | T.D. Vorhees | Improvement in Screw-Drivers |
 | 74,490 | Feb. 18, 1868 | J.A. Bidwell | Screwdriver and Countersink |
 | 101,207 | Mar. 29, 1870 | A.S. Apgar | Improvement in Screw and Screw-Driver |
 | 118,617 | Aug. 29, 1871 | G.B. Cornell, J. Lacey | Bush and Wrench for Barrels |
 | RE5,026 | Aug. 06, 1872 | G.B. Cornell, J. Lacey | Improved Wrench for Securing Metallic Bushing in Casks or Barrels |
| | 163,217 | May 11, 1875 | P.B. Lawson | Expanding Mandrel |
 | 173,356 | Feb. 08, 1876 | T.J. Sloan | Improvement in Screw-Drivers |
 | RE8,468 | Oct. 29, 1878 | G.B. Cornell, J. Lacey | Bung-Wrenches |
