Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6910516 | Curtain blind take-up drive mechanism with non-slip effect | — | 2005-06-28 |
| 6688204 | Cutting machine of dual blade feeding for blind of foamed plastics | — | 2004-02-10 |
| 6158494 | Winding device for window covering | — | 2000-12-12 |
| 6116323 | Dual function dragging device for curtain | — | 2000-09-12 |