| All Patents of Type: screwdriver mechanisms |
Patents 1 -
15
of 43
      |
| Number | Date | Patentee | Title | Type |
| 8,174X | Apr. 29, 1834 | C. Babbitt | Stock screw drill | hand drills |
| 70,923 | Nov. 12, 1867 | T.D. Vorhees | Improvement in Screw-Drivers | screwdriver mechanisms |
| 219,425 | Sep. 09, 1879 | G. Abrams | Improvement in Crank Screw-Drivers | screwdriver mechanisms |
| 285,484 | Sep. 25, 1883 | M.C. Henley | Screw-driver | screwdriver mechanisms |
| 287,809 | Nov. 06, 1883 | W. Devereux | Screw-Driver | screwdriver mechanisms |
| 290,218 | Dec. 18, 1883 | C.W. Drake | Screw holding screwdriver | screwdriver mechanisms |
| 320,920 | Jun. 30, 1885 | N.W. Farrand | Screw-Driver | screwdriver mechanisms |
| 366,439 | Jul. 12, 1887 | T. Troy | Reversible Screw Driver | screwdriver mechanisms |
| 470,777 | Mar. 15, 1892 | C.E. Billings | Multiblade Screwdriver | screwdriver mechanisms |
| 470,778 | Mar. 15, 1892 | L.H. Boyden | Attachment for Screwdrivers | screwdriver mechanisms |
| 486,395 | Nov. 15, 1892 | W.M. Carr | Screw Driver | screwdriver mechanisms |
| 491,687 | Feb. 14, 1893 | J.R. Quimby | Attachment for Screwdriver | screwdriver mechanisms |
| 537,246 | Apr. 09, 1895 | A.B. Stone | pocket screwdriver | screwdriver mechanisms |
| 687,401 | Nov. 26, 1901 | C.M. Morse | Screw-Driver | screwdriver handles |
| 701,195 | May 27, 1902 | Z.T. Furbish | Means of Securing Handles or Rests to Tools | screwdriver handles |
