Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4970766 | Button attachable to clothes without using thread | Wen-Ju Hsieh | 1990-11-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4970766 | Button attachable to clothes without using thread | Wen-Ju Hsieh | 1990-11-20 |