• All sections
• B - Performing operationstransporting
• B61L - Guiding railway trafficensuring the safety of railway traffic
• B61L 23/28 - Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in two directions over the same pair of rails using non-automatic blocking from a place along the route

Patent holdings for IPC class B61L 23/28

Total number of patents in this class: 2

10-year publication summary

Principal owners for this class