Electronic mail; electronic announcement systems; dissemination of financial information by electronic means

Chemical preparations for aiding water quality; Chemical preparations for neutralizing water; Chemical preparations for the treatment of water; Chemical preparations for use in water purification

Apparatus for disinfecting water; Apparatus for filtering water; Apparatus for purifying water; Apparatus for the decontaminating water; Apparatus for water purification; Bacteriostatic water treatment installations; Electronic apparatus for the purification of water; Installations for purifying water; Installations for the treatment (clarifying) of water; Ionization apparatus for the treatment of air or water; Ionization instruments for the treatment of air or water