Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683631 | Carbonaceous packing material for prebaked anode maufacture in open pit ring furnaces | — | 1997-11-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683631 | Carbonaceous packing material for prebaked anode maufacture in open pit ring furnaces | — | 1997-11-04 |