发明名称 SMOKING ARTICLE FILTER
摘要 <p>A smoking article filter (1) comprising filter material (2) into which at least one ventilation channel (4) configured to ventilate the filter material (2) extends at a non-perpendicular angle to an exterior longitudinal surface of the filter (1).</p>
申请公布号 WO2012013572(A1) 申请公布日期 2012.02.02
申请号 WO2011EP62558 申请日期 2011.07.21
申请人 BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED;KALJURA, KARL 发明人 KALJURA, KARL
分类号 A24D3/04 主分类号 A24D3/04
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