Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683040 | Method for recycling waste from printed circuit board assemblies from electrical and electronic devices | Ralf Jakob | 1997-11-04 |
| 5647544 | Method and apparatus for dividing and separating self-adhesive composite plastic materials | Ralph Greiner, Bjorn Stuckrad | 1997-07-15 |