| All Patents in class 408/163 |
Patents 1 -
10
of 16
      |
| Picture | Number | Date | Patentee | Title |
| | 421,773 | Feb. 18, 1890 | T.L. Smith | Screw Cutting Die |
| | 473,582 | Apr. 26, 1892 | H.B. Keiper | Screw-cutting plate |
| | 610,158 | Aug. 30, 1898 | F.G. Echols | Tool for Cutting Screw Threads |
| | 863,515 | Aug. 13, 1907 | J.O. Dixon | Screw Threading Machine |
 | 871,451 | Nov. 19, 1907 | A.J. Smart | Screw-cutting die and holder therefor |
 | 890,848 | Jun. 16, 1908 | E.S. Mummert, J.O. Dixon | Screw Threading Machine |
| | 977,539 | Dec. 06, 1910 | H.W. Oster | Die-stock for cutting tapered threads |
| | 995,413 | Jun. 13, 1911 | H.F. Mussler | Reamer |
 | 1,046,739 | Dec. 10, 1912 | E.E. Davis | Reaming-tool |
| | 1,419,448 | Jun. 13, 1922 | C.E. Davis | Boring Head |
