Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4337897 | Process and device for producing the refractory lining of metallurgical vessels | Erich Hoffken | 1982-07-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4337897 | Process and device for producing the refractory lining of metallurgical vessels | Erich Hoffken | 1982-07-06 |