Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881869 | Furnace charging throat construction | Bernhard Henneken, Burno Kammerling, Eckhard-K. Scholz, Wolfgang Schroeder | 1989-11-21 |
| 4878655 | Furnace charging throat construction | Bernhard Henneken, Bruno Kammerling, Eckhard-K. Scholz, Wolfgang Schröder | 1989-11-07 |