EU Trademark Classification EU11 Lighting, heating and air conditioning 乙炔燃烧器（28447） Class 11 乙炔燃烧器 28447 Chinese 乙炔燃烧器 English Burners (Acetylene -) Site ref. 28447 Class 11 Included in Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS)