7 Electric drive motors, in particular for ventilation and household technology equipment and apparatus;except electric driving motors, and parts therefor, for vacuum cleaners.
9 Measuring, control, switching, checking (supervision) and safety apparatus, and installations consisting thereof, in particular for ventilation and household technology equipment and apparatus;thermostats, hygrostats, speed controls, temperature difference regulators, air quality regulators;sensors, in particular for the checking (supervision) and regulating of pressure, temperature, gas, humidity, light, movement;electric transformers and converters.
11 Lighting, heating, cooking, refrigerating, drying and ventilating apparatus and equipment and parts therefor, in particular electrically-powered ventilators, exhaustors, air conditioning apparatus, and installations consisting thereof, fan heaters, air heaters and air purifiers, fresh air apparatus, heat recovery apparatus, ventilation flaps and valves, air inlet elements, sound dampers for ventilation systems, fire protection flaps, air grates and protective grates, included in class 11, heat exchangers, in particular regenerative and recuperative heat exchangers, heat pumps, gas, oil and wood-fired heating apparatus, drinking water and service water storage tanks and heaters, solar thermal and photovoltaic installations and apparatus.
37 Electric installation; assembly, maintenance and repair of ventilation and household technology equipment and apparatus and of parts for the aforesaid equipment and apparatus.
42 Architectural and construction consultancy, in particular energy and remediation consultancy for private and industrial buildings; engineering services; all the aforesaid services in particular relating to ventilation and household technology equipment and apparatus.