Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4241232 | Welded integral tube wall for electric steel-smelting furnace | — | 1980-12-23 |
| 4217097 | Venturi-type workpiece-support nozzle | Hans-Martin Nolzen | 1980-08-12 |
| 4208179 | Internally cooled workpiece-support grate | Hans-Martin Nolzen | 1980-06-17 |