Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE32875 | Process for the froth-flotation of a phosphate mineral from a phosphate-carbonate ore | Esko T. Kari, Elias Suokas | 1989-02-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE32875 | Process for the froth-flotation of a phosphate mineral from a phosphate-carbonate ore | Esko T. Kari, Elias Suokas | 1989-02-21 |