EU Trademark Classification EU09 Scientific and electronic apparatus 磁性墙内龙骨探测器（22902） Class 09 磁性墙内龙骨探测器 22902 Chinese 磁性墙内龙骨探测器 English Magnetic wall stud finders Site ref. 22902 Class 09 Included in Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS)