EU Trademark Classification EU37 Construction and repair 风力发电厂维护和修理（61672） Class 37 Maintenance and repair of wind power plants 61672 风力发电厂维护和修理 Chinese 风力发电厂维护和修理 English Maintenance and repair of wind power plants Site ref. 61672 Class 37 Included in Harmonised Database (HDB)