Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4703674 | Electrical plier | Ching-Wen Chen | 1987-11-03 |
| 4660241 | Multipurpose pliers | Ching-Win Chen | 1987-04-28 |
| 4571764 | Multi-purpose electrotechnological pliers | Ching-Wen Chen | 1986-02-25 |