EU Trademark Classification EU11 Lighting, heating and air conditioning 白炽灯用灯泡（29911） Class 11 白炽灯用灯泡 29911 Chinese 白炽灯用灯泡 English Light bulbs for incandescent lamps Site ref. 29911 Class 11 Included in Harmonised Database (HDB), Nice Alphabetical List, WIPO Madrid Goods and Services (MGS)