9
Scientific, optical, weighing, measuring, signalling and checking (supervision) apparatus and instruments; analysis apparatus, not for medical purposes, in particular water analysis apparatus; anodes, in particular sacrificial anodes; electromagnetic coils; data-processing equipment and computers
11
sanitary apparatus and installations and parts therefor, namely pipeline elements, fittings, filters and cartridges; apparatus for the treatment, processing and purification of water, included in class 11; apparatus and instruments for use in water supply installations, in particular physical water purifiers
37
Installation, maintenance and repair of water supply systems, heating installations, sanitary apparatus and installations; plumbing; remediation services, in particular pipe remediation; construction of water treatment and processing installations; installation
42
Conducting of chemical and physical analyses, in particular water analyses; chemistry and phzsics laboratory services; surveying; technical environmental protection consultancy in the field of fresh water and waste water; planning of water treatment and processing installations; engineering, chemistry and physics; creation of data-processing programs