Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5211208 | Double-point welding machine | Gerhard Ritter, Klaus Ritter, Rudolf Scherr | 1993-05-18 |
| 5125436 | Apparatus for loading a grid-welding machine with elongate elements | Klaus Ritter, Gerhard Ritter | 1992-06-30 |
| 5020575 | Method and installation for feeding longitudinal elements to a welding machine for grates or gratings | Rudolf Scherr, Klaus Ritter, Gerhard Ritter | 1991-06-04 |