IPC Subgroup
E21F 5/2 Drawing-off or depositing dust
Introduced: September 1968
Last revised: January 2006
Full Title
Means or methods for preventing, binding, depositing or removing dust; Preventing explosions or fires > Drawing-off or depositing dust
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- EARTH OR ROCK DRILLING; MINING
- Subclass:
- SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS