Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4229639 | Energy beam welding method | Johannes Koy, Erwin Kappelsberger | 1980-10-21 |
| 4203023 | Welding pool support device for energy beam welding | Karl H. Steigerwald, Wilhelm Scheffels, Peter Anderl, Dieter Konig, Walther Hiller | 1980-05-13 |