| All Patents in class 76/117 |
Patents 1 -
10
of 17
      |
| Picture | Number | Date | Patentee | Title |
| | 82,118 | Sep. 15, 1868 | A. Hoermann | Die for Cutting Screws |
| | 153,804 | Aug. 04, 1874 | H.E. Boyd | Lathe Attachments for Cutting Screw Taps |
 | 168,349 | Oct. 05, 1875 | J.C. Sherman | Improvement in screw-cutting dies |
| | 269,153 | Dec. 12, 1882 | F. Armstrong | Thread Cutting Die |
 | 300,604 | Jun. 17, 1884 | W.C. Hartmann | Die Stock |
 | 422,024 | Feb. 25, 1890 | A.B. Landis | Screw-cutting head |
 | 441,603 | Nov. 25, 1890 | S. Tideman | Die and Die Stock |
| | 565,746 | Aug. 11, 1896 | J. Hartness | Screw Cutting Die |
 | 707,233 | Aug. 19, 1902 | C.J. Jackson | Screw-cutting die |
| | 832,076 | Oct. 02, 1906 | H.W. Oster | Die-cutter |
