Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858892 | Device for determining the charge profile in a shaft furnace | Hans Jochen Grisse | 1989-08-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858892 | Device for determining the charge profile in a shaft furnace | Hans Jochen Grisse | 1989-08-22 |