Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Subgroup
E01B 3/46

made from different materials (E01B3/26, E01B3/42 take precedence)

Full Title

Transverse or longitudinal sleepers (for switches or crossings E01B7/22); Other means resting directly on the ballastway for supporting rails > made from different materials (E01B3/26, E01B3/42 take precedence)