| All Patents in class 81/438 |
Patents 1 -
10
of 45
      |
| Picture | Number | Date | Patentee | Title |
 | 157,102 | Nov. 24, 1874 | W.F. Patterson | Improvement in Screw-Drivers |
 | 158,807 | Jan. 19, 1875 | W.F. Patterson | Improvement in Screw-Drivers |
 | 204,812 | Jun. 11, 1878 | R.S. Gladding | Improvement in Screw-Drivers |
 | 214,785 | Apr. 29, 1879 | E. Morris | Improvement in Screwdrivers |
 | 219,425 | Sep. 09, 1879 | G. Abrams | Improvement in Crank Screw-Drivers |
 | 249,101 | Nov. 01, 1881 | H.A. Sawtell | Screw-Driver |
 | 274,042 | Mar. 13, 1883 | H.V. Smith | Convertible screwdriver and borer |
 | 279,917 | Jun. 26, 1883 | F.J. Colvin | Screw-Driver |
 | 386,263 | Jul. 17, 1888 | J.T. Pedersen | Tool Holder and Tools for the Same |
 | 484,654 | Oct. 18, 1892 | W.E. Daily | Screw-driver |
