| All Patents in class 408/149 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 17,187 | May 05, 1857 | W.N. Adams | Screw Cutting Machine | screw machines |
| 581,187 | Apr. 20, 1897 | F.E. Wells, W.C. Wells | Machine for Making Nipples and Stud Bolts | pipe making machines |
| 1,057,014 | Mar. 25, 1913 | O.A. Smith | Die | |
| 1,148,510 | Aug. 03, 1915 | W.H. Gates | Self Opening Adjustable Die Head | tap and die holders |
| 1,358,074 | Nov. 09, 1920 | W.H. Gates | Die Head | tap and die holders |
| 1,464,177 | Aug. 07, 1923 | W.H. Gates | Die Head | tap and die holders |
| 1,563,108 | Nov. 24, 1925 | A.J. Prance | Thread-cutting die | tapping heads and chucks |
| 1,655,563 | Jan. 10, 1928 | A.J. Prance | Thread-cutting die | tapping heads and chucks |
| 1,953,529 | Apr. 03, 1934 | R.R. Finn, E.T. Bysshe | Automatic Die | taps and dies |
