EU Trademark Classification EU11 Lighting, heating and air conditioning 烟囱用烟道（29271） Class 11 烟囱用烟道 29271 Chinese 烟囱用烟道 English Flues (Chimney -) Site ref. 29271 Class 11 Included in Harmonised Database (HDB), Nice Alphabetical List, WIPO Madrid Goods and Services (MGS)