Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9566622 | Automatic vacuum sewerage solids cleaning systems and methods | Qizhong Guo | 2017-02-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9566622 | Automatic vacuum sewerage solids cleaning systems and methods | Qizhong Guo | 2017-02-14 |