1
Filtering materials and Binding-agents; Filtering materials of chemical substances; Filtering materials of plastic; Filtering material of metallic substances; Ceramic particles being filtering media
7
Machine parts, namely Valves and Gaskets of the following materials: ceramic, Metal or Plastic, in particular Multiway valves, Double function valves, flutter valves, Ball valves, Check valves, Automatic valves, Switching valves and Control valves; Injection nozzles and exchangeable nozzles for the aforesaid valves and gaskets; Drive machines for pneumatic, hydraulic or electric motors and engines and machines, in particular Actuators and Control mechanisms for use in relation to the following goods: Motors and machines; Control and regulating devices and apparatus for liquid treatment and/or desalination plants; Flow regulators (being parts of machines); Flow or time-dependent programmed control apparatus for use in relation to the following goods: machines, Motors and Drive mechanisms
9
Measuring indicators, difference indicators, measuring electrodes and measurement amplifiers and measuring devices, apparatus, instruments and installations and printers that can be connected to the aforesaid goods, consisting of the aforesaid goods for constructing technical-chemical devices, in particular for the measurement of conductivity, temperature, turbidity, hardness and redox parameters, but also for determination of the concentration of hydrazine, chloride, hydrogen and sodium in liquids; Measuring lances; Removal lances; Vacuum measuring apparatus for liquid systems; Droppers; Flowmeters for gas and liquids; Commutators, more specifically Float switches; Test devices and apparatus, in particular for measuring liquids; Pulse generators for water meters; Dosimeters and dosing installations, mainly of dosage pumps in the form of dosage pumps with rotary pistons without valves; Recorded programmes on or in data carriers for the aforesaid controllers and programmed control apparatus; Distribution boxes and cabinets (electricity) for the aforesaid goods; Corrosion testing apparatus for liquids; Valves (Electronic controls for automatically operating -)
11
Desalination, detoxification and treatment plants for liquids; Installations, mainly of air washing towers or pipes filled with neutralisation media, for absorption of corrosive, aggressive or harmful steams, in particular acid steams; Filtration devices, Heating installations, Drying apparatus and Ventilation equipment, as far as the aforesaid goods are included in class 11; Filters for chemical liquids; stack gas filters