EU Trademark Classification EU09 Scientific and electronic apparatus 过滤膜（科学用）（23015） Class 09 过滤膜（科学用） 23015 Chinese 过滤膜（科学用） English Membranes for filtration [scientific] Site ref. 23015 Class 09 Included in Harmonised Database (HDB), TM5 ID List, WIPO Madrid Goods and Services (MGS)