Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697770 | Pump using a single diaphragm having preformed oppositely directed bulges forming inlet and outlet valve closing bodies | — | 1997-12-16 |
| 5651904 | Method for removing material from metal workpieces moved relative to the removal tool | Jörg Franke, Gerd Herziger | 1997-07-29 |