| All Patents in class 408/188 |
Patents 1 -
10
of 20
      |
| Picture | Number | Date | Patentee | Title |
 | 8,806 | Mar. 16, 1852 | J.P. Owen | Improvement in machines for cutting screws on rails and posts of bedsteads |
| | 28,279 | May 15, 1860 | Z.L. Jacobs | Screw Plate |
 | 112,063 | Feb. 21, 1871 | J.C. Mills | Improvement in Auger-Bits |
| | 135,314 | Jan. 28, 1873 | F.D. Bliss | Die Plates |
| | 206,920 | Aug. 13, 1878 | E.P. Baville | Screw Cutting Stock and Tool |
| | 263,550 | Aug. 29, 1882 | G.B. Malette | Screw Plate |
 | 288,188 | Nov. 06, 1883 | A.J. Smart | Screw-cutting machines |
| | 350,366 | Oct. 05, 1886 | G. Holstein | Die for Cutting Screws |
| | 419,174 | Jan. 14, 1890 | J.A. Becher | Revolving Turret Bolt Threading Machine |
| | 464,568 | Dec. 08, 1891 | C.A. Johnson | Screw Cutting Die |
