IPC Subgroup
E01B 21/04 Special fastenings, joint constructions, or tie-rods
Introduced: September 1968
Last revised: January 2006
Full Title
Track superstructure specially adapted for tramways in paved streets > Special fastenings, joint constructions, or tie-rods
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- Subclass:
- PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
Related Keywords
CROSS-TIES for rail tracksJOINTS for rails of railwaysRAIL(S) joints