EU Trademark Classification EU09 Scientific and electronic apparatus 导光丝（光纤）（22735） Class 09 导光丝（光纤） 22735 Chinese 导光丝（光纤） English Light conducting filaments [optical fibers [fibres]] Site ref. 22735 Class 09 Included in Harmonised Database (HDB), Nice Alphabetical List, WIPO Madrid Goods and Services (MGS)