Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6933458 | Method for positioning a welding bolt and bolt welding head | Ulrich Citrich, Jurgen Madsak | 2005-08-23 |
| 6825434 | Method for welding a bolt onto a workpiece and a bolt-welding device | Jurgen Madsak, Ulrich Citrich | 2004-11-30 |