Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5019009 | Toy car chassis intermittent tilt and steering structure | Tseng Kuo-Heng | 1991-05-28 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5019009 | Toy car chassis intermittent tilt and steering structure | Tseng Kuo-Heng | 1991-05-28 |