Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4793542 | Process for welding cast iron | Wolfgang Farrenkopf, Manfred Menzinger, Joachim von Hirsch, Reinhard Opitz | 1988-12-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4793542 | Process for welding cast iron | Wolfgang Farrenkopf, Manfred Menzinger, Joachim von Hirsch, Reinhard Opitz | 1988-12-27 |