Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6787098 | Refractory lining for metallurgical vessel | Donald Abrino, John Crooks, Ronald Barrett | 2004-09-07 |
| 6673306 | Refractory lining for metallurgical vessel | Donald Abrino, John Crooks, Ronald Barrett | 2004-01-06 |