Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4768756 | Converter for preparing steel and a gas supply device for such a converter | Johannes A. M. Butter | 1988-09-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4768756 | Converter for preparing steel and a gas supply device for such a converter | Johannes A. M. Butter | 1988-09-06 |