| All Patents in class 81/440 |
Patents 1 -
10
of 16
      |
| Picture | Number | Date | Patentee | Title |
 | 50,021 | Sep. 19, 1865 | J.S. McCurdy | Improvement in Screw-Drivers |
 | 187,600 | Feb. 20, 1877 | G. Collins | Combination Countersink, Screwdriver & Gimlet Bit |
 | 339,456 | Apr. 06, 1886 | W.L. Parmelee | Screw Driver |
 | 385,791 | Jul. 10, 1888 | F.B. Carpenter | Combined Bit, Countersink, and Screw-Driver |
| | 655,007 | Jul. 31, 1900 | W.K. Rairigh | Combination Tool |
 | 750,182 | Jan. 19, 1904 | Z.T. Furbish | Reversible Screw-Driver |
 | 1,215,308 | Feb. 06, 1917 | J.E. Johnson | Combination Tool |
| | 1,560,834 | Nov. 10, 1925 | G.A. McMenimen | Tool Holder and Tool or Implement Therefor |
 | 1,656,259 | Jan. 17, 1928 | F.L. Young | Multi Blade Screwdriver |
 | 1,796,083 | Mar. 10, 1931 | A.E. Carlberg | Wrench |
