IPC Subgroup
E21F 5/08 Rock dusting; Depositing other protective substances
Introduced: September 1968
Last revised: January 2006
Full Title
Means or methods for preventing, binding, depositing or removing dust; Preventing explosions or fires > Rock dusting; Depositing other protective substances
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
2 direct subcodes
Child Classifications
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