Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865532 | Apparatus for vulcanizing pneumatic vehicle tires | Udo Frerichs, Carsten Boltze, Hans-Ulrich Klose | 1989-09-12 |
| 4850411 | Vehicle wheel | Hans Seitz, Henner Pieper, Udo Frerichs | 1989-07-25 |
| 4825924 | Bead core for a pneumatic vehicle tire including hollow cords | Udo Frerichs | 1989-05-02 |