Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6799708 | Device for joining workpieces by friction stir welding | Alexander von Strombeck | 2004-10-05 |
| 6722556 | Method and device for joining at least two adjoining work pieces by friction welding | Christoph Schilling | 2004-04-20 |