Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11092418 | Tape measure with variable preformed stressed spiral spring retraction system | Shih-Chi Chou | 2021-08-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11092418 | Tape measure with variable preformed stressed spiral spring retraction system | Shih-Chi Chou | 2021-08-17 |