79065450
Jan 30, 2009
Nov 24, 2009
Refuge chambers in the nature of metal shelters for providing temporary life supporting closed environments; and parts and fittings therefor
Metal GoodsAir purifying apparatus for supplying breathable air for refuge chambers; gas scrubbing apparatus including CO scrubbers and CO2 scrubbers; air purifying apparatus and machines; and parts and fittings for the aforesaid goods
Environmental Control Apparatus