Architectural louvres of metal; Louvres made of metal; Metal louvre vents for buildings; Metal louvre window assemblies; Sun louvres of metal for buildings; Ventilator flaps of metal for buildings; Ventilators (vents) of metal for buildings; Channels of metal for transmitting air for ventilation; Metal ventilation channels; Ventilation grilles of metal for fitting in doors; Ventilation grilles of metal for fitting in windows

Louvres being air conditioning apparatus; Louvres being ventilating apparatus; Compressed air ventilators; Fire ventilators for exhausting fumes; Fire ventilators for exhausting gases; Fire ventilators for exhausting smoke; Fire ventilators for exhausting vapours; Ventilators for heat exchangers; Air inductor apparatus (ventilation); Apparatus for exhausting dust (ventilation); Apparatus for exhausting fumes (ventilation); Apparatus for exhausting gases (ventilation); Apparatus for exhausting mists (ventilation); Apparatus for exhausting particles (ventilation); Apparatus for extracting dust (ventilation); Apparatus for extracting fumes (ventilation); Apparatus for extracting gases (ventilation); Apparatus for extracting mists (ventilation); Apparatus for extracting particles (ventilation); Dust extraction installations (ventilation); Dust removing installations for ventilation; Extractor units (ventilation); Extractors (ventilation or air conditioning); Industrial ventilation apparatus; Motorised fans for ventilation; Process ventilation apparatus; Solar powered ventilation apparatus; Sound absorbers being parts of apparatus for ventilation; Ventilation apparatus; Ventilation installations