| All Patents in class 408/215 |
Patents 1 -
15
of 27
      |
| Number | Date | Patentee | Title | Type |
| 8,604X | Jan. 16, 1835 | A. Stedman | Making wooden screws | wood lathes |
| 1,816 | Oct. 10, 1840 | J. Lindly | Improvement in Machines for Cutting Screws Upon the ends of the Rails of Bedsteads | woodworking horizontal borers |
| 8,620 | Dec. 23, 1851 | J. Zimmer | Wooden Thread Cutting Machine | woodworking horizontal borers |
| 18,909 | Dec. 22, 1857 | W. Kenyon | Screw-cutting machine | nut or bolt making machines |
| 21,961 | Nov. 02, 1858 | W.O. Hickok | Die for Cutting Wooden Screws | drill accessories |
| 47,543 | May 02, 1865 | B.S. Hill | Die for Cutting Male-Screw Threads | taps and dies |
| 167,165 | Aug. 31, 1875 | J.J. Grant | Improvement in die-stocks | tap wrenches and die stocks |
| 168,349 | Oct. 05, 1875 | J.C. Sherman | Improvement in screw-cutting dies | taps and dies |
| 186,037 | Jan. 09, 1877 | R.C. Fay | Screw Cutting Die | taps and dies |
| 189,719 | Apr. 17, 1877 | J. Flower | Taps and Dies | tap and die holders |
| 263,550 | Aug. 29, 1882 | G.B. Malette | Screw Plate | |
| 311,549 | Feb. 03, 1885 | F.E. Wells | Die-stock | taps and dies |
| 385,543 | Jul. 03, 1888 | A. Burritt | Tap with Detachable Cutters | taps and dies |
| 407,868 | Jul. 30, 1889 | J.C. Middleton | Boring-Bit | drill bits |
| 433,334 | Jul. 29, 1890 | G.L. Engren | Screw Cutting Die | taps and dies |
