Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5961826 | Biological waste water treatment system having a sedimentation tank vertically combined with an aeration tank therein | — | 1999-10-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5961826 | Biological waste water treatment system having a sedimentation tank vertically combined with an aeration tank therein | — | 1999-10-05 |