EU Trademark Classification EU35 Advertising and business 为商业目的进行经济研究（56980） Class 35 为商业目的进行经济研究 56980 Chinese 为商业目的进行经济研究 English Economic studies for business purposes Site ref. 56980 Class 35 Included in Harmonised Database (HDB), TM5 ID List, WIPO Madrid Goods and Services (MGS)