发明名称 VENTILATED SMOKING ARTICLE
摘要 A smoking article 10 comprises a source of smokable material 11, a filter 12, a first layer 13 surrounding at least a part of the filter 12, a second layer 14 surrounding at least a part of the first layer 13 and one or more paths 15 for ventilating air flow between the first and second layers 13, 14. A part of the first layer 13 surrounds the source of smokable material 11 and is for attaching the filter 12 thereto.
申请公布号 CA2840801(C) 申请公布日期 2016.06.07
申请号 CA20122840801 申请日期 2012.07.17
申请人 BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED 发明人 KALJURA, KARL;RICHARDSON, JOHN;BLICK, KEVIN
分类号 A24D3/04;A24D1/02 主分类号 A24D3/04
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