Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6022507 | Exchange device for a blowing lance | Hans-Hermann Kempken, Helmut W. Goj, deceased | 2000-02-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6022507 | Exchange device for a blowing lance | Hans-Hermann Kempken, Helmut W. Goj, deceased | 2000-02-08 |