Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871698 | Carbon bonded refractory bodies | Mark K. Fishler | 1989-10-03 |
| 4870037 | Prevention of Al.sub.2 O.sub.3 formation in pouring nozzles and the like | Han Ki Park | 1989-09-26 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871698 | Carbon bonded refractory bodies | Mark K. Fishler | 1989-10-03 |
| 4870037 | Prevention of Al.sub.2 O.sub.3 formation in pouring nozzles and the like | Han Ki Park | 1989-09-26 |