Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883698 | Multilayer film containing a biaxially oriented polypropylene film | Guenther Crass, Siegfried Janocha, Gunter Schloegl | 1989-11-28 |
| 4863032 | Packaging wrapper for disk-shaped magnetic information carriers | Gunter Schloegl, Guenther Crass | 1989-09-05 |
| 4842187 | Opaque film for candy twist wrapping | Siegfried Janocha, Guenther Crass, Gunter Schloegl | 1989-06-27 |