Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4235636 | Plastic refractories with fused alumina-chrome grog | James R. Friedrichs, Bela Klaudinyi, deceased | 1980-11-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4235636 | Plastic refractories with fused alumina-chrome grog | James R. Friedrichs, Bela Klaudinyi, deceased | 1980-11-25 |