1
Chemicals used in water treatment, included in class 1; water-softening preparations; water-purifying chemicals; inhibitors and hardness stabilisers for drinking water and service water systems, included in class 1; corrosion inhibitors, in particular for drinking water and service water systems, included in class 1; liquid corrosion inhibitors with a silicate base, included in class 1; chemical preservatives, included in class 1
2
Corrosion preventatives, in particular liquid corrosion preventatives for adding to water, being anti-corrosion preparations for metallic surfaces; preservatives, included in class 2; colorants, included in class 2
3
Cleaning preparations for apparatus, installations, equipment and machines for water treatment, water supplying and water storage, and for drinking water and service water systems, including diaphragm installations; cleaning preparations for cleaning equipment and systems for the aforesaid apparatus and installations, included in class 3
9
Dosing apparatus for water softening apparatus, water softening installations, water purification installations, water purifying apparatus, water purifying machines, supply installations, water treatment installations, drinking water installations and service water installations
11
Water softening apparatus and installations, water purifying installations, equipment and machines, supplying and water treatment installations, drinking water and service water installations, all included in class 11; parts and accessories for the aforesaid installations, equipment, apparatus and machines, included in class 11; dosing installations and dosing apparatus, beings parts for the aforesaid installations, apparatus, equipment and machines