Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6797921 | Welding unit equipped with a communications interface and method for operating the welding unit | Heinrich Hackl, Manfred Wittman, Anton Lauber, Peter Mair | 2004-09-28 |
| 6734393 | Data display on a welding screen | Helmut Friedl, Heinrich Hackl | 2004-05-11 |