EU Trademark Classification EU11 Lighting, heating and air conditioning Draught dampers for inhibiting the spread of vapours Class 11 Draught dampers for inhibiting the spread of vapours 28768 抑制蒸汽扩散用风门 Chinese 抑制蒸汽扩散用风门 English Draught dampers for inhibiting the spread of vapours Site ref. 28768 Class 11 Included in Harmonised Database (HDB)