IPC Subgroup
E21F 5/16 Layers of hygroscopic or other salts deposited on floors, walls, or the like, for binding dust; Deposition of such layers
Introduced: September 1968
Last revised: January 2006
Full Title
Means or methods for preventing, binding, depositing or removing dust; Preventing explosions or fires > Layers of hygroscopic or other salts deposited on floors, walls, or the like, for binding dust; Deposition of such layers
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