EU Trademark Classification EU09 Scientific and electronic apparatus Faraday rotator glass Class 09 Faraday rotator glass 21852 法拉第旋转器玻璃 Chinese 法拉第旋转器玻璃 English Faraday rotator glass Site ref. 21852 Class 09 Included in Harmonised Database (HDB), Nice Alphabetical List, WIPO Madrid Goods and Services (MGS)