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Pumps (machines), in particular for building installations, for water supply and water disposal and for industry and agriculture, cleaning apparatus and systems, machine tools (except pumps for medical purposes and air pumps); pumps for heating installations; base plate mounted pumps; glanded pumps; glandless pumps; multi-stage centrifugal pumps; borehole pumps; effluent pumps; sewage pumps; pumps and pump systems consisting thereof for drinking and process water, wastewater, ground water, wastewater treatment, drainage; pumps for pressure increase; insulation jackets (parts of pumps); spare parts for pumps (included in this class); pumps (parts of machines, engines and motors); pump diaphragms. Installation, maintenance and repair of pumps and pump stations; information on repair work; installation and servicing of heating systems; installation and servicing of heating, control and/or regulation systems; installation and repair of electric appliances and/or electronic appliances; installation and repair of air conditioning systems; installation and servicing of hardware for Internet accesses; installation and servicing of hardware for network systems; installation and servicing of bus systems (hardware); installation, repair and maintenance of data processing technology systems (hardware); installation, maintenance and repair of machines; building construction supervision; rustproofing; overhaul of worn out or partly destructed machines, motors or pumps.