| All Patents in class 81/436 |
Patents 1 -
15
of 96
      |
| Number | Date | Patentee | Title | Type |
| 35,337 | May 20, 1862 | J. Thompson | Screw Driver | screwdrivers |
| 67,014 | Jul. 23, 1867 | J.A. Ayres | Improved Screw-Driver | screwdriver blades |
| 70,923 | Nov. 12, 1867 | T.D. Vorhees | Improvement in Screw-Drivers | screwdriver mechanisms |
| 74,490 | Feb. 18, 1868 | J.A. Bidwell | Screwdriver and Countersink | screwdriver blades |
| 101,207 | Mar. 29, 1870 | A.S. Apgar | Improvement in Screw and Screw-Driver | screwdriver blades |
| 118,617 | Aug. 29, 1871 | G.B. Cornell, J. Lacey | Bush and Wrench for Barrels | wrenches |
| RE5,026 | Aug. 06, 1872 | G.B. Cornell, J. Lacey | Improved Wrench for Securing Metallic Bushing in Casks or Barrels | wrenches |
| 163,217 | May 11, 1875 | P.B. Lawson | Expanding Mandrel | mandrels and arbors |
| 173,356 | Feb. 08, 1876 | T.J. Sloan | Improvement in Screw-Drivers | screwdriver blades |
| RE8,468 | Oct. 29, 1878 | G.B. Cornell, J. Lacey | Bung-Wrenches | wrenches |
| 236,692 | Jan. 18, 1881 | S.B. Peakman | Screw-Driver | screwdrivers |
| 287,809 | Nov. 06, 1883 | W. Devereux | Screw-Driver | screwdriver mechanisms |
| 289,056 | Nov. 27, 1883 | R.C. Ellrich, G.S. Allen | Screwdriver | screwdriver handles |
| 315,137 | Apr. 07, 1885 | F.L. Hamlen, Z.T. Furbish | Ratchet Screw-Driver | ratcheting screwdrivers |
| 320,920 | Jun. 30, 1885 | N.W. Farrand | Screw-Driver | screwdriver mechanisms |
