Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6481336 | Piston with pressure-dependent sealing effect for a piston-cylinder arrangement, in particular a shock absorber piston | — | 2002-11-19 |
| 6450084 | Piston with piston ring | Hans-Joachim Betsch | 2002-09-17 |