Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D299121 | Portable bicycle | — | 1988-12-27 |
| 4749207 | Hand propelled and foot steered cart | — | 1988-06-07 |
| 4746135 | Pedal crank driven tricycle | — | 1988-05-24 |
| D280980 | Tricycle | Myung S. Koo | 1985-10-15 |