Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4757986 | Structural improvement of motion type solid water ball | Shi-Geng Hwang | 1988-07-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4757986 | Structural improvement of motion type solid water ball | Shi-Geng Hwang | 1988-07-19 |