Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822583 | Phosphate feed material for phosphorus electric furnaces and production of same | Joseph H. Finley, Jared S. Sproul | 1989-04-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822583 | Phosphate feed material for phosphorus electric furnaces and production of same | Joseph H. Finley, Jared S. Sproul | 1989-04-18 |