Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10823202 | Muffling device and ventilating fan having the same | Chuanjiang Guo, Chuanhui Fang, Chikuen Au | 2020-11-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10823202 | Muffling device and ventilating fan having the same | Chuanjiang Guo, Chuanhui Fang, Chikuen Au | 2020-11-03 |