EU Trademark Classification EU42 Scientific and technological services 赛车运动领域的机械研究（71603） Class 42 赛车运动领域的机械研究 71603 Chinese 赛车运动领域的机械研究 English Mechanical research in the field of motor sports Site ref. 71603 Class 42 Included in Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS)