Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853031 | Process for preparing binderfree hot briquettes for smelting purposes | Erich Hoffken, Rudolf Auth, Lothar Seidelmann | 1989-08-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853031 | Process for preparing binderfree hot briquettes for smelting purposes | Erich Hoffken, Rudolf Auth, Lothar Seidelmann | 1989-08-01 |