11 Lighting, heating, steam generating, cooking, refrigerating, drying, ventilation, water supply and sanitary apparatus and installations and parts therefor (not included in other classes).
37 Installation, repair and maintenance of lighting, heating, steam generating, cooking, refrigerating, drying, ventilation, water supply and sanitary apparatus and installations and parts therefor and of other apparatus in connection with renewable forms of energy; building construction; contractors; Insulating services; consultancy in relation to the aforesaid services (except for building consultancy).
42 Architectural consultation; consultancy in the field of energy-saving; advisory and consultancy services regarding energy management and heating technologies.
