| 发明名称 |
Cigarette filter rod elements and cigarettes incorporating such filter rod elements. |
| 摘要 |
A cigarette filter rod element incuding an axially extending barrier tube of micro-fine fibres with a diameter of between 0.5 and 10 microns and located so that at least part of the gas flow passes through the wall of said barrier tube. |
| 申请公布号 |
EP0364253(B1) |
申请公布日期 |
1994.03.30 |
| 申请号 |
EP19890310421 |
申请日期 |
1989.10.11 |
| 申请人 |
ROTHMANS INTERNATIONAL SERVICES LIMITED |
发明人 |
BRACKMANN, WARREN ARTHUR;LIEW, TOW PIN |
| 分类号 |
A24D3/04;A24D3/10 |
主分类号 |
A24D3/04 |
| 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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