Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4657226 | Apparatus for introducing gas to molten metal within a vessel | Heinrich Illemann | 1987-04-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4657226 | Apparatus for introducing gas to molten metal within a vessel | Heinrich Illemann | 1987-04-14 |