Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4441698 | Furnace for the heat treatment of drills | Ferdinand Limque, Franz Bless, Reinhard Neubauer, Dietmar Lange | 1984-04-10 |
| 4201600 | Method for the gas carburization of workpieces made of steel | Werner Gohring | 1980-05-06 |