Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6749800 | Arrangement and method for transporting metallic work pieces, and system for heat treatment of said work pieces | Jörg Müller-Ziller | 2004-06-15 |
| 4441698 | Furnace for the heat treatment of drills | Ferdinand Limque, Cornelis H. Luiten, Reinhard Neubauer, Dietmar Lange | 1984-04-10 |
| 4232852 | Apparatus for control of the carburization of parts in a vacuum furnace | Ferdinand Limque | 1980-11-11 |