EU Trademark Classification EU09 Scientific and electronic apparatus 耳机插孔防尘塞（19760） Class 09 Anti-dust plugs for earphone jacks 19760 耳机插孔防尘塞 Chinese 耳机插孔防尘塞 English Anti-dust plugs for earphone jacks Site ref. 19760 Class 09 Included in Harmonised Database (HDB), TM5 ID List