Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4604138 | Process for refining hot metal | Erich Hoffken, Rudolf HAMMER | 1986-08-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4604138 | Process for refining hot metal | Erich Hoffken, Rudolf HAMMER | 1986-08-05 |