07
Machines for filtering, dehydrating, breaking up,
thickening, processing and/or compacting sludges and their
components; filters and screens as parts of machines;
filtering machines; sifters; rakes (screens) as machines and
as machine parts; mechanical rakes (screens) for use in
clarifying installations; separators (machines); separating
machines; water separators; chemical dosing machines;
machines for dosing flocculating agents/auxiliary
flocculating agents; machines for removing solid materials
from liquids and sludges; sludge scrapers (machines)
11
Apparatus, machines and installations for mechanical,
chemical and/or biological water purification and water
treatment; clarifying installations; small clarifying
installations; rakes (screens) as mechanical parts of sewage
purification installations; water filtering apparatus and
units; filters as parts of filtering units; water supply
apparatus; water and sewage pipe installations, as well as
regulating and safety devices therefor, included in this
class; sanitary apparatus and installations; sedimentation
basins as parts of sewage purification installations
37
Construction, installation, retrofitting, maintenance and
repair of plants for mechanical, chemical and/or biological
water purification, water processing and sludge treatment;
construction, installation, retrofitting, maintenance and
repair of clarifying installations, sewer systems and/or
sewage purification plants; construction of electrical
switching and control installations
42
Technical project studies; design planning; architectural
consultation; engineering services; research in the field of
environmental protection
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