| All Patents in class 470/188 |
Patents 1 -
10
of 39
      |
| Picture | Number | Date | Patentee | Title |
| | 230,825 | Aug. 03, 1880 | I.S. Schuyler | Machine for Cutting Screw Threads |
| | 312,700 | Feb. 24, 1885 | M. Blakey | Machine for Making Tapered Threaded Sockets |
| | 535,486 | Mar. 12, 1895 | Z.B. Coes | Taper Turning Tool for Lathes |
 | 763,816 | Jun. 28, 1904 | W. Vosper | Die for cutting taper threads |
| | 841,396 | Jan. 15, 1907 | F.W. Hoefer | Machine for Threading Pipes |
| | 925,181 | Jun. 15, 1909 | L.F. Hart | Screw Cutting Device |
 | 939,648 | Nov. 09, 1909 | F.E. Wells, F.W. Wells | Die-stock |
 | 939,735 | Nov. 09, 1909 | W. Murchey | Thread-cutting tool |
| | 962,024 | Jun. 21, 1910 | L.F. Hart | Screw Cutting Device |
 | 962,184 | Jun. 21, 1910 | F.E. Wells | Die-stock |
