Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871502 | Method for manufacturing an otoplastic | Helmut Lebisch, Georg Fuchs, Hermann Dietmar, Ernst Wipfelder, Wilhelm Hekele | 1989-10-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871502 | Method for manufacturing an otoplastic | Helmut Lebisch, Georg Fuchs, Hermann Dietmar, Ernst Wipfelder, Wilhelm Hekele | 1989-10-03 |