CPC Subgroup
E01B 21/04 Special fastenings, joint constructions, or tie-rods
Full Title
Track superstructure adapted for tramways in paved streets (paving E01C9/04, E01C9/06) > Special fastenings, joint constructions, or tie-rods
E01B 21/04 Track superstructure adapted for tramways in paved streets (paving E01C9/04, E01C9/06) > Special fastenings, joint constructions, or tie-rods