发明名称 Tobacco smoke filter
摘要 The present invention provides a tobacco smoke filter or filter element having a longitudinally extending core (2) and a wrapper (4) engaged around the core (2), the wrapper (4) having particulate additive (6) adhered to one or more portion(s) of the radially inner face thereof with said wrapper (4) being free of additive around its circumference at one or both ends of the core.
申请公布号 US6302114(B1) 申请公布日期 2001.10.16
申请号 US19920960737 申请日期 1992.10.14
申请人 CIGARETTE COMPONENTS LIMITED 发明人 CLARKE PAUL FRANCIS;CHARLTON JOHN
分类号 A24B15/28;A24D3/04;A24D3/14;A24D3/16;(IPC1-7):A24D1/02;A24B1/04;D21F11/00 主分类号 A24B15/28
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