EU Trademark Classification EU11 Lighting, heating and air conditioning 空气诱导设备（通风）（28233） Class 11 Air inductor apparatus [ventilation] 28233 空气诱导设备（通风） Chinese 空气诱导设备（通风） English Air inductor apparatus [ventilation] Site ref. 28233 Class 11 Included in Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS)