Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4260588 | Production of sulphidic copper concentrates | Norbert L. Piret, Herbert Kudelka | 1981-04-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4260588 | Production of sulphidic copper concentrates | Norbert L. Piret, Herbert Kudelka | 1981-04-07 |