Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5016459 | Method and guide roll stand for guiding and shaping strip material in a pipe mill | — | 1991-05-21 |
| 4770019 | Forming roll, forming process and its apparatus in the pipe mill | Atumu Okamoto, Takashi Tomino | 1988-09-13 |