136257 ⎘
Ventilation of mines or tunnels; Distribution of ventilating currents Air partitions; Air locks
Sub-classes:MINER AUTOMATED HARDWARE INSTALLATION SYSTEM AND AUTOMATED BRATTICE INSTALLER
#2SYSTEM AND METHOD FOR SEALING AND PRESSURIZING ENCLOSED FACILITIES VIA PREFABRICATED MODULES, PLUGS, DOORS, AND INSERTS.
#3EXPANDABLE MINE STOPPING PANEL
#4Split air cabin ventilation system for construction of tunnel inclined shaft and ventilation method using same
#5Sealing system
#6Mine stopping and components thereof
#7Barricade wall
#8Pumpable mine ventilation structure
#9Mine stopping panel and method of sealing a mine stopping
#10Overcast System for Mine Ventilation
#11Adjustable mine ventilation system and method
#12Mine stopping panel with end caps and louver connections
#13PUMPABLE MINE VENTILATION STRUCTURE
#14Mine ventilation system and method
#15Mine ventilation structure and a deck panel for such a structure
#16INFLATABLE VENTILATION LIFE CURTAIN
#17Blowing curtain face ventilation system for extended cut mining using passive regulator
#18Pumpable mine ventilation structure
#19Mine stopping panel with end caps and louver connections
#20PORTABLE VENTILATION CURTAIN FRAME
#21UNDERGROUND MINE VENTILATION CURTAIN OR BARRIER
#22Steel anchored reinforced mine seal
#23Inflatable ventilation life curtain
#24Underground Mine and Method of Mining
#25Air deflecting mine ventilation structure
#26Anchored mine ventilation structure
#27Safe haven wall
#28Steel anchored reinforced mine seal