Vertical mixers for waste water treatment included in this class, namely, power-operated multiple-paddle machines for mixing waste water, Mechanical mixing machines with gear motors for mixing waste water, sewage and sludge, Mechanical mixing machines for mixing waste water, Mechanical mixing machines for mixing sewage, Mechanical mixing machines for mixing sludge

Apparatus, instruments and cables for electricity, namely, electrical cables; devices and apparatus for the analysis of water, namely, scientific instrumentation for measuring the throughput speed and the concentration of chemicals in water and dispensers of preset portions of fluid, all not for medical use; devices for dosing of water, namely, scientific instrumentation for measuring the throughput speed and the concentration of chemicals in water and dispensers of preset portions of fluid, all not for medical use; solenoid dosing valves being electromagnetic switches; electric loss indicators, namely, electricity meters; electric apparatus for commutation, namely, commutators; electric regulating apparatus for the purpose of regulating pressure, quantity and flow of liquids; electricity distribution consoles; electric coils; electricity junction boxes; sprinkler systems and water systems in the nature of hoses, valves, pipes, liquid storage vessels, nozzles, remote filling stations, manual control panels and manual and electric switches for fire protection; laboratory devices for the measuring and evaluation of water quality, namely, electronic devices for measuring liquid decontamination and chemical levels; testing apparatus, not for medical purposes, namely, electrical apparatus for testing the pressure, quantity and flow of liquids; apparatus and instruments for physics, namely, wave and flow meters for use in installations for water management, waste water, waste water treatment, sewage and drainage; electric sensors; heat regulating apparatus, namely, devices for heating and energy management for use in installations for water management, waste water, waste water treatment, sewage and drainage; thermometers, not for medical purposes; thermostats; temperature switches; structural parts and fittings for all the aforesaid goods, included in this class, with none of aforementioned goods using, or for use with, vacuum technology in the laboratory and in industry

Water purification installations; Sewage purification installations; Installations for water treatment, namely, water recycling and waste water treatment systems comprising drainage water treatment tanks, waste water treatment tanks and agitating and mixing machines for circulating liquid waste water and structural parts and fittings therefor