US Trademark Classification US11 Lighting, heating and air conditioning 汞灯（011-566） Class 11 汞灯 011-566 Chinese 汞灯 English Mercury lamps Spanish Lámparas de mercurio Term ID 011-566 Class 11 Type Goods Status Active · added, not since modified (A) Effective date 2004-07-20 Version 08-2002