Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4673611 | Support film and pressure-sensitive adhesive tape | Guenther Crass, Annegrete Bursch | 1987-06-16 |
| 4525416 | Adhesive tape | Gunther Crass | 1985-06-25 |
| 4397905 | Adhesive tape | Gerhard Dettmer | 1983-08-09 |