Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859294 | Process for electrochemically oxidizing sulphuric acid chromium-III-solutions to chromium-VI-solutions | — | 1989-08-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859294 | Process for electrochemically oxidizing sulphuric acid chromium-III-solutions to chromium-VI-solutions | — | 1989-08-22 |