EU Trademark Classification EU11 Lighting, heating and air conditioning 冷水器和热水器（30970） Class 11 Water coolers and heaters 30970 冷水器和热水器 Chinese 冷水器和热水器 English Water coolers and heaters Site ref. 30970 Class 11 Included in Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS)