发明名称 |
Control of cigarette smoke chemistry |
摘要 |
A cigarette smoke filter element is provided which permits a higher level of flavor to reach the smoker during initial smoking of the cigarette and consequently an enhanced flavor-to-tar ratio, by employing an elongate filter of microfine fibers which is provided with openings therethrough at the upstream end.
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申请公布号 |
US5826592(A) |
申请公布日期 |
1998.10.27 |
申请号 |
US19950457320 |
申请日期 |
1995.06.01 |
申请人 |
ROTHMANS, BENSON & HEDGES INC. ET AL. |
发明人 |
BRACKMANN, WARREN A. |
分类号 |
A24D1/00;A24D3/04;(IPC1-7):A24B3/00 |
主分类号 |
A24D1/00 |
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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