EU Trademark Classification EU09 Scientific and electronic apparatus 非线性光纤（23298） Class 09 Nonlinear optical fibres 23298 非线性光纤 Chinese 非线性光纤 English Nonlinear optical fibres Site ref. 23298 Class 09 Included in Harmonised Database (HDB), TM5 ID List, WIPO Madrid Goods and Services (MGS)