Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874726 | Lightweight fused silica refractory compositions | Thomas R. Kleeb | 1989-10-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874726 | Lightweight fused silica refractory compositions | Thomas R. Kleeb | 1989-10-17 |