EU Trademark Classification EU11 Lighting, heating and air conditioning Draught regulators for inhibiting the spread of fumes Class 11 Draught regulators for inhibiting the spread of fumes 28808 抑制烟气扩散用通风调节器 Chinese 抑制烟气扩散用通风调节器 English Draught regulators for inhibiting the spread of fumes Site ref. 28808 Class 11 Included in Harmonised Database (HDB)