Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4927984 | Protective housing for cable joints | Heinz Sandmann | 1990-05-22 |
| 4498866 | Sagger furnace | Wigbert Hauner | 1985-02-12 |
| 4306860 | Mount for artificial teeth | Hansjorg Janssen | 1981-12-22 |