US Trademark Classification US11 Lighting, heating and air conditioning 电锅炉（011-592） Class 11 电锅炉 011-592 Chinese 电锅炉 English Electrical boilers Spanish Calderas eléctricas Term ID 011-592 Class 11 Type Goods Status Active · added, not since modified (A) Effective date 2004-07-20 Version 08-2002