Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872587 | Closure for a fuel tank | Gunther Zimmermann, Wolfgang Nantt, Wolfgang Weissert | 1989-10-10 |
| 4816192 | Portable handheld motor-driven tool | Mohamed Abou-Aly, Eberhard Bohnacker, Bernhard Kiefel, Reinhard Gerhardy, Erich Krauter | 1989-03-28 |