Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7921688 | Square tube forming roll, square tube forming method, and forming device | Feizhou Wang, Manabu Kiuchi | 2011-04-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7921688 | Square tube forming roll, square tube forming method, and forming device | Feizhou Wang, Manabu Kiuchi | 2011-04-12 |