Class 016
Paper Goods and Printed Material
Educational and instructional material; printed matter.
Class 037
Construction and Repair Services
Maintenance and repair of water purifying apparatus.
Class 040
Treatment & Processing of Materials Services
Water treating; on-site water purification services.
Class 042
Computer & Software Services & Scientific Services
Technical design and planning of water purification installations and devices; technological consultancy; technological consultancy regarding water purification devices, water purification installations, sewers and purification installations.