Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5314171 | Apparatus for the extraction of metals from metal-containing raw materials | Hans A. Friedrichs | 1994-05-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5314171 | Apparatus for the extraction of metals from metal-containing raw materials | Hans A. Friedrichs | 1994-05-24 |