Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4860999 | Device for heat-treating, in particular annealing, a continuously advanced metal wire | Klaus Ritter | 1989-08-29 |
| 4853511 | Apparatus for the feeding of transverse wires to the welding line of a grid welding machine | Klaus Ritter, Rudolf Scherr | 1989-08-01 |
| 4848560 | Feeding apparatus for grid welding machine | Rudolf Scherr, Klaus Ritter, Josef Ritter | 1989-07-18 |