IPC Subgroup
E21D 7/02 Arrangement of guides for cages in shafts; Connection of guides for cages to shaft walls
Introduced: September 1968
Last revised: January 2006
Full Title
Shaft equipment, e.g. timbering within the shaft > Arrangement of guides for cages in shafts; Connection of guides for cages to shaft walls
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- EARTH OR ROCK DRILLING; MINING
- Subclass:
- SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS