Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5226020 | Wrist watch having the function of magnetic health care | Zhi Li, Wen-Qing Xu | 1993-07-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5226020 | Wrist watch having the function of magnetic health care | Zhi Li, Wen-Qing Xu | 1993-07-06 |