Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4321173 | Method for the preparation of finely dispersed polyurethane ureas | Bertram Freudenberg, Horst Muhlfeld | 1982-03-23 |
| 4310373 | Method for heat-sealing textile materials with polyurethane adhesives | Erich Fahrbach, Sepp Wagner | 1982-01-12 |