76087878
Jul 12, 2000
Ducts of metal for ventilating and air conditioning installations and structural parts and fitting therefor
Metal Goodscomputer software, electronic power boards and electronic monitor boards for controlling extraction, ventilation and filter systems
Electrical and Scientific Apparatusair filters and ventilating fans for air conditioning and structural parts and fittings therefor
Environmental Control ApparatusDucts, not of metal, for ventilating and air conditioning installations and structural parts and fittings therefor
Nonmetallic Building MaterialsMaintenance, installation and repair of extraction and ventilation systems
Building Construction and Repair