| All Patents in class 470/67 |
Patents 1 -
10
of 12
      |
| Picture | Number | Date | Patentee | Title |
| | 407,413 | Jul. 23, 1889 | D. Rosser, T. McFassen | Pipe Thread Cutting Machine |
 | 437,459 | Sep. 30, 1890 | F. Schoff | Portable reaming and tapping tool |
| | 686,577 | Nov. 12, 1901 | B. Borden | Pipe Threading Machine |
| | 835,698 | Nov. 13, 1906 | R. Bartholomäus | Combination Tool |
| | 841,396 | Jan. 15, 1907 | F.W. Hoefer | Machine for Threading Pipes |
| | 902,599 | Nov. 03, 1908 | H.W. Oster | Die-stock |
 | 1,199,917 | Oct. 03, 1916 | H.W. Oster | Portable tool-turning machine |
| | 1,692,487 | Nov. 20, 1928 | E.L. Connell | Motor-driven threading tool |
| | 1,708,183 | Apr. 09, 1929 | A. Levedahl | Spindle lock |
 | 1,789,411 | Jan. 20, 1931 | G.D. Sleeth, H.W. Oster | Portable power-driven threading tool |
