Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5980725 | Method for upgrading waste material comprising sheet metal with a zinc plating on at least one side thereof | Johannes Greefkes | 1999-11-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5980725 | Method for upgrading waste material comprising sheet metal with a zinc plating on at least one side thereof | Johannes Greefkes | 1999-11-09 |