Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10274280 | Trigger labor-saving structure of crossbow | Ching-Chi Hung | 2019-04-30 |
| 10274281 | Trigger labor-saving structure of crossbow | Ching-Chi Hung | 2019-04-30 |
| 10209027 | Retention structure of crossbow | Ching-Chi Hung | 2019-02-19 |