Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11655672 | Device for restricting torsion spring of scrolling device of window curtain from reversely expanding | Wen Ying Liang | 2023-05-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11655672 | Device for restricting torsion spring of scrolling device of window curtain from reversely expanding | Wen Ying Liang | 2023-05-23 |