Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4486889 | Continuous-flow heater for molten metals | Fritz Hegewaldt | 1984-12-04 |
| 4273810 | Method for preventing sintering in forging blocks | Jurgen Potschke, Ottmar Knacke | 1981-06-16 |