| All Patents of Type: pipe threading machines |
Patents 1 -
15
of 18
      |
| Number | Date | Patentee | Title | Type |
| 265,639 | Oct. 10, 1882 | A. Saunders | Chuck | pipe threading machines |
| 309,374 | Dec. 16, 1884 | G.W. Whitman, M.C. Bignall | Pipe cutting and threading machine | pipe cutting machines |
| 372,490 | Nov. 01, 1887 | A. Saunders | Machine for Cutting and Screw Threading Tubes, &c. | pipe threading machines |
| 406,857 | Jul. 09, 1889 | A. Saunders | Screw Cutting Die | pipe threading machines |
| 407,413 | Jul. 23, 1889 | D. Rosser, T. McFassen | Pipe Thread Cutting Machine | pipe threading machines |
| 438,605 | Oct. 21, 1890 | F.S. Cook | Nut Tapping Machine | nut or bolt making machines |
| 443,500 | Dec. 30, 1890 | L.B. Curtis, R.P. Curtis | Pipe Threading Machine | pipe threading machines |
| 443,501 | Dec. 30, 1890 | R.P. Curtis | Pipe Threading Machine | pipe threading machines |
| 443,502 | Dec. 30, 1890 | R.P. Curtis | Pipe Threading Machine | pipe threading machines |
| 686,577 | Nov. 12, 1901 | B. Borden | Pipe Threading Machine | pipe threading machines |
| 841,396 | Jan. 15, 1907 | F.W. Hoefer | Machine for Threading Pipes | pipe threading machines |
| 962,024 | Jun. 21, 1910 | L.F. Hart | Screw Cutting Device | pipe threading machines |
| 1,289,721 | Dec. 31, 1918 | H.L. Fisher | Cutter-head | pipe threading machines |
| 1,327,007 | Jan. 06, 1920 | G.A. Anderson | Cutter-head | pipe threading machines |
| 1,327,008 | Jan. 06, 1920 | G.A. Anderson | Cutter-head | pipe threading machines |
