Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4768137 | Screwdriver structure with illuminating function | Huo M. Chen, Tu-Chuan CHEN | 1988-08-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4768137 | Screwdriver structure with illuminating function | Huo M. Chen, Tu-Chuan CHEN | 1988-08-30 |