Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5542464 | Roller blind with screen rolled up by a spring and rolled down by hand | — | 1996-08-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5542464 | Roller blind with screen rolled up by a spring and rolled down by hand | — | 1996-08-06 |