EU Trademark Classification EU09 Scientific and electronic apparatus 记录基片（光学）（24109） Class 09 Recording substrates [optical] 24109 记录基片（光学） Chinese 记录基片（光学） English Recording substrates [optical] Site ref. 24109 Class 09 Included in Harmonised Database (HDB), TM5 ID List, WIPO Madrid Goods and Services (MGS)