Installations, apparatus or equipment, including mist elimiators, cascade impactors, ventilators, filters and acid coolers and components or parts or fittings, for use in industry to control air and water pollution and collect liquid mist or soluble solids which may be valuable, toxic or contaminating in the treatment of process gas or liquid streams, all the aforesaid goods being included in class 11

Services included in this class relating to the investigation, control and reduction of water and air pollution and for the treatment of waste materials wherein the treated substance or materials undergo a change of some kind

Services relating to the construction or installation of equipment for investigation, control and reduction of water and air pollution and for the treatment of waste materials; and services in this class relating to the investigation, control and reduction of water and air pollution and for treatment of waste materials wherein the treated substances or materials remain unchanged

Installations for air supply, water supply and sanitary or anti-pollution purposes, including installations for the testing, control and abatement of air pollution, water pollution and the treatment of waste materials

Chemical products used in the testing, control and abatement of air pollution, water pollution and the treatment of waste materials, including the treatment of air supply, water supply and waste material for sanitary or anti-pollution purposes