EU Trademark Classification EU37 Construction and repair 清空（清洁）服务（61170） Class 37 Emptying [cleaning] services 61170 清空（清洁）服务 Chinese 清空（清洁）服务 English Emptying [cleaning] services Site ref. 61170 Class 37 Included in Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS)