Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7904993 | Spherical bearing for lock gate door and lock gate door having the same | Hiroshi Suda, Maki Hirayama | 2011-03-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7904993 | Spherical bearing for lock gate door and lock gate door having the same | Hiroshi Suda, Maki Hirayama | 2011-03-15 |