Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804524 | Process for the preparation of boric acid from colemanite and/or howlite minerals | — | 1989-02-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804524 | Process for the preparation of boric acid from colemanite and/or howlite minerals | — | 1989-02-14 |