Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690830 | Waste water treatment apparatus and washing method thereof | Akira Ohtani, Kenichi Inoue, Naoki Tada | 1997-11-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690830 | Waste water treatment apparatus and washing method thereof | Akira Ohtani, Kenichi Inoue, Naoki Tada | 1997-11-25 |