7
Fans for motors and engines; axial fan condensers; fans for machine engines; centrifugal fan condensers; blowing machines or fans for the compression, sucking and carrying of grain; blowing machines for exhaustion of dust, etc; blowing machines for the compression, exhaustion and transport of gases; centrifugal machines; centrifugal fan condensers; dust exhausting installations for cleaning purposes; heat exchangers (parts of machines); separators; water separators; oil separators
11
Ventilating exhaust fans; fans (parts of air conditioning installations); fans (air-conditioning); ventilating fans for commercial and industrial use; fans for air-conditioning; water cooling towers; cooling installations for liquids; cooling evaporators; air-conditioning, air cooling and ventilation apparatus and instruments; cooling installations for water; cooling installations and machines; air cooling apparatus; cooling appliances and installations; ventilation (air-conditioning) installations for vehicles; ventilation (air-conditioning) installations and apparatus; drying apparatus and installations; heat exchangers; heat exchangers (not parts of machines); separators for the cleaning and purification of air; separators for the cleaning and purification of gases; air conditioners; ionisation apparatus for the treatment of air; air purifying apparatus and machines; air deodorising apparatus; air driers (dryers); dryers for the removal of water vapor from compressed air and gases; air filtering installations; air conditioning installations; dryers used for the removal of solid, liquid and vapor contaminants from compressed air and gases; air purifiers; gas scrubbers (parts of gas installations); gas scrubbers; scrubbers (parts of gas installations); water purifiers; water purification apparatus; water purifying apparatus and machines; water purification installations; water purification units; water purifying units, for potable water (for domestic, commercial or industrial use); cooling installations for water; water purification and filtration apparatus
37
Machinery installation, maintenance and repair; repair or maintenance of water purifying apparatus; repair or maintenance of air-conditioning apparatus (for industrial purposes); air conditioning apparatus installation and repair; machinery maintenance and repair