11
Heating systems using alternative types of energy; heating, ventilating, water supply and sanitary apparatus and installations; water heaters and storage water heaters, heat accumulators; collectors using solar energy; solar heating systems
35
Advertising; business management services; business administration; office functions; providing consultancy services for marketing organizations; rental of advertising space; retail services, including by means of telecommunications apparatus, catalogues and online ordering services, in relation to heating systems using alternative types of energy, heating, ventilating, water supply and sanitary apparatus and installations, water heaters and storage water heaters, heat accumulators, collectors using solar energy and solar heating systems
37
Installation, servicing and customer services in connection with heating systems using alternative types of energy, heating, ventilating, water supply and sanitary apparatus and installations, water heaters and storage water heaters, heat accumulators, collectors using solar energy and solar heating systems
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