Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863798 | Refractory composite material and method of making such material | David L. Arenz, Marc G. Simpson | 1989-09-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863798 | Refractory composite material and method of making such material | David L. Arenz, Marc G. Simpson | 1989-09-05 |