Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5224985 | Process and apparatus for the melting of metals in the cupola furnace operated without coke | Wolfgang Kullik, Rainer Graf | 1993-07-06 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5224985 | Process and apparatus for the melting of metals in the cupola furnace operated without coke | Wolfgang Kullik, Rainer Graf | 1993-07-06 |