| 发明名称 |
Tobacco smoke filter and methods of making the same |
| 摘要 |
A tobacco smoke filter (10) can comprise a spiral core (11) of impermeable or semi-permeable material. A filter spiral core (11) is surrounded by filter material (12) such as cellulose acetate and wrapped in paper (13). |
| 申请公布号 |
ZA200903457(B) |
申请公布日期 |
2010.03.31 |
| 申请号 |
ZA20090003457 |
申请日期 |
2009.05.19 |
| 申请人 |
BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED |
发明人 |
FALLON, GARY |
| 分类号 |
A24D |
主分类号 |
A24D |
| 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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