Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7232542 | Preheating cold blast air of a blast furnace for tempering the hot blast temperature | Michael Friedrich | 2007-06-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7232542 | Preheating cold blast air of a blast furnace for tempering the hot blast temperature | Michael Friedrich | 2007-06-19 |