| All Patents of Type: screwdrivers |
Patents 1 -
15
of 150
      |
| Number | Date | Patentee | Title | Type |
| 9,457 | Dec. 07, 1852 | J.W. Switzer | Screwdriver | screwdrivers |
| 18,206 | Sep. 15, 1857 | D.A. Lamson | Combination Tool for Mechanics and Others | combination tools |
| 35,337 | May 20, 1862 | J. Thompson | Screw Driver | screwdrivers |
| 35,715 | Jun. 24, 1862 | J.A. Thayer | Combination Tool | combination tools |
| 37,920 | Mar. 17, 1863 | T.J. Penny | Improved Combined Wrench, Scraper and Screwdriver | wrench combination tools |
| 43,398 | Jul. 05, 1864 | G.H. Gardner | Improved Pocket Knife | combination tools |
| 47,102 | Apr. 04, 1865 | D.F. Hartford | Screwdriver and Tweezers | clockmaker |
| 56,191 | Jul. 10, 1866 | C.G. Dodge, Jr. | Combined Hammer and Screw-Driver | combination tools |
| 56,423 | Jul. 17, 1866 | T.C. Law | Combined Stove Hook, Hammer, etc. | combination tools |
| 60,482 | Dec. 18, 1866 | D.T. Crockett | Hammer | combination tools |
| 66,739 | Jul. 16, 1867 | J. Richards | Improved Implement for Wagoners | combination tools |
| 72,463 | Dec. 24, 1867 | O. Dean | Improvement in Screwdrivers | screwdrivers |
| 79,346 | Jun. 30, 1868 | W.W. Coggshall, P.C. Havely | Improvement in Hammers | hammers |
| 81,970 | Sep. 08, 1868 | E.J. Amor | Combined Screw-Driver and Wrench | screwdrivers |
| 84,142 | Nov. 17, 1868 | W.S. Smoot | Improved Form of Combined Claw-Hammer, Wrench and Screw-Driver | combination tools |
