发明名称 |
FILTER FOR A SMOKING ARTICLE |
摘要 |
<p>A filter for a smoking article comprising a filter section and a recess section, the recess section being defined at a mouth end of the filter and the filter section being longitudinally aligned with and adjacent to the recess section and comprising first and second filter portions, the first filter portion being disposed between the recess section and the second filter portion, and the second filter portion comprising a longitudinally extending plug and a particulate material disposed in a circumferential region of the plug. Also provided is a smoking article comprising a filter according to the invention.</p> |
申请公布号 |
WO2011000638(A1) |
申请公布日期 |
2011.01.06 |
申请号 |
WO2010EP57320 |
申请日期 |
2010.05.27 |
申请人 |
BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED;RICHARDSON, JOHN;WHITE, PETER REX |
发明人 |
RICHARDSON, JOHN;WHITE, PETER REX |
分类号 |
A24C5/47;A24D3/04 |
主分类号 |
A24C5/47 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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