Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5071335 | Apparatus for two-layered injection moulding | Gerd Riedel, Gottfried Lutz, Rudolf Breuer | 1991-12-10 |
| 4801068 | Method of producing an injection moulding tool | Peter Graczoll, Helmut Peuke, Gerd Riedel | 1989-01-31 |