Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4584457 | Device for arc welding, in particular submerged-arc welding, with one or several fusible electrodes | Ulrich Plantikow, Walter Kopp | 1986-04-22 |
| 4368371 | Process for the submerged-arc welding of light metals such as aluminum and aluminum alloys | Friedrich Eichhorn, Peter Hirsch, Peter Holbach, Kurt Lettner | 1983-01-11 |