Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9802269 | Pressure welding machine and pressure welding method | Frank Rudolph, Thomas Hauck, Harald Meyer, Klaus Schneider, Otmar Fischer | 2017-10-31 |
| 4793542 | Process for welding cast iron | Wolfgang Farrenkopf, Heinrich Gruenauer, Joachim von Hirsch, Reinhard Opitz | 1988-12-27 |