Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10428580 | Spring operated roller blind system with tension spring adjusting mechanism and locking element for said system | Ruben Hubert Jan de Vries, Bastiaan Franciscus Klein Tuente | 2019-10-01 |