Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5694658 | Flexible toothbrush | Pei Zhi Huang, Jian WU | 1997-12-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5694658 | Flexible toothbrush | Pei Zhi Huang, Jian WU | 1997-12-09 |