| All Patents in class 470/67 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 407,413 | Jul. 23, 1889 | D. Rosser, T. McFassen | Pipe Thread Cutting Machine | pipe threading machines |
| 437,459 | Sep. 30, 1890 | F. Schoff | Portable reaming and tapping tool | portable metal drilling machines |
| 686,577 | Nov. 12, 1901 | B. Borden | Pipe Threading Machine | pipe threading machines |
| 835,698 | Nov. 13, 1906 | R. Bartholomäus | Combination Tool | portable turning tools |
| 841,396 | Jan. 15, 1907 | F.W. Hoefer | Machine for Threading Pipes | pipe threading machines |
| 1,692,487 | Nov. 20, 1928 | E.L. Connell | Motor-driven threading tool | |
| 1,708,183 | Apr. 09, 1929 | A. Levedahl | Spindle lock | |
| 1,883,728 | Oct. 18, 1932 | J.F. Haas | Portable power driven threading machine | handheld power tools |
