Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4441698 | Furnace for the heat treatment of drills | Cornelis H. Luiten, Franz Bless, Reinhard Neubauer, Dietmar Lange | 1984-04-10 |
| 4368037 | Conveyor arrangement for a continuous oven | Hans Bertrand | 1983-01-11 |
| 4278421 | Industrial furnaces for the heat treatment of metallic workpieces | Hans Bertrand | 1981-07-14 |
| 4232852 | Apparatus for control of the carburization of parts in a vacuum furnace | Franz Bless | 1980-11-11 |
| 4221561 | Aluminum soldering furnace | Hans Bertrand | 1980-09-09 |