Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4360560 | Base material for the production of printed circuits and process for the preparation of the base material | Dirk Huthwelker, Arnold Franz, Lothar Jacob | 1982-11-23 |
| 4317856 | Insulating-material bodies having metal particles dispersed in the resin | Dirk Huthwelker, Arnold Franz | 1982-03-02 |