All Patents in class 408/215 |
Patents 1 -
10
of 27
      |
Picture | Number | Date | Patentee | Title |
 | 8,604X | Jan. 16, 1835 | A. Stedman | Making wooden screws |
 | 1,816 | Oct. 10, 1840 | J. Lindly | Improvement in Machines for Cutting Screws Upon the ends of the Rails of Bedsteads |
 | 8,620 | Dec. 23, 1851 | J. Zimmer | Wooden Thread Cutting Machine |
 | 18,909 | Dec. 22, 1857 | W. Kenyon | Screw-cutting machine |
 | 21,961 | Nov. 02, 1858 | W.O. Hickok | Die for Cutting Wooden Screws |
 | 47,543 | May 02, 1865 | B.S. Hill | Die for Cutting Male-Screw Threads |
 | 167,165 | Aug. 31, 1875 | J.J. Grant | Improvement in die-stocks |
 | 168,349 | Oct. 05, 1875 | J.C. Sherman | Improvement in screw-cutting dies |
| 186,037 | Jan. 09, 1877 | R.C. Fay | Screw Cutting Die |
| 189,719 | Apr. 17, 1877 | J. Flower | Taps and Dies |