发明名称 Concentric smoking filter having discrete tow and web filter media.
摘要 <p>A concentric smoking filter (12) in which one of the filter media (20 or 21) is a fibrous tow, such as fibrous cellulose acetate tow, and one of the filter media (21 or 20) is a web material, such as paper, is provided. The filter improves the taste, particularly, of "ultra-light" cigarettes. <IMAGE></p>
申请公布号 GR3032144(T3) 申请公布日期 2000.04.27
申请号 GR19990403230T 申请日期 1999.12.15
申请人 发明人
分类号 A24D3/04;A24D3/06;A24D3/08;A24D3/10;A24D3/16;B01D39/16;(IPC1-7):A24D3/04 主分类号 A24D3/04
代理机构 代理人
主权项
地址