IPC Subgroup
E01C 1/04 Road crossings on different levels; Interconnections between roads on different levels
Introduced: September 1968
Last revised: January 2006
Full Title
Design or layout of roads, e.g. for noise abatement, for gas absorption > Road crossings on different levels; Interconnections between roads on different levels
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- Subclass:
- CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR