EU Trademark Classification EU37 Construction and repair Maintenance and repair of solid fuel boilers Class 37 Maintenance and repair of solid fuel boilers 61740 固体燃料锅炉的维护和修理 Chinese 固体燃料锅炉的维护和修理 English Maintenance and repair of solid fuel boilers Site ref. 61740 Class 37 Included in Harmonised Database (HDB)