Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4552195 | Strip curtain | Heinz Durig, Hans Grutzner | 1985-11-12 |
| 4227564 | Curtain track with traverse cord | — | 1980-10-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4552195 | Strip curtain | Heinz Durig, Hans Grutzner | 1985-11-12 |
| 4227564 | Curtain track with traverse cord | — | 1980-10-14 |