Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4238118 | Method of permanent protection of the lower part of the blast furnace, in particular of the bottom of the blast furnace hearth | Stanislaw Czosnyka, Walter Krzywon, Andrzej Kozien, Stanislaw Cichocki | 1980-12-09 |