EU Trademark Classification EU37 Construction and repair 提供与窗户清洁服务相关的信息（61998） Class 37 提供与窗户清洁服务相关的信息 61998 Chinese 提供与窗户清洁服务相关的信息 English Providing information relating to window cleaning services Site ref. 61998 Class 37 Included in Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS)