Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830667 | Pyrometallurgical copper refining | Samuel Walton Marcuson, Carlos M. Diaz, James A. Bell, Richard Stratton-Crawley | 1989-05-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830667 | Pyrometallurgical copper refining | Samuel Walton Marcuson, Carlos M. Diaz, James A. Bell, Richard Stratton-Crawley | 1989-05-16 |