EU Trademark Classification EU09 Scientific and electronic apparatus 油水界面传感器（23299） Class 09 Oil-water level sensors 23299 油水界面传感器 Chinese 油水界面传感器 English Oil-water level sensors Site ref. 23299 Class 09 Included in Harmonised Database (HDB), Nice Alphabetical List, WIPO Madrid Goods and Services (MGS)