IPC Subgroup
E21D 15/02 Non-telescopic props
Introduced: September 1968
Last revised: January 2006
Full Title
Props; Chocks > Non-telescopic props
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- EARTH OR ROCK DRILLING; MINING
- Subclass:
- SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
2 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- E21D 15/04 with wooden prop parts joined by double conical connectors
- E21D 15/06 with parts joined by a lock, with or without slight axial adjustability