发明名称 Wrapper for a smoking article
摘要 A wrapper (16) for a smoking article filter, the wrapper comprising at least one aperture (20) and an additional strengthening material (22) around the at least one aperture. A filter for a smoking article comprising such a wrapper, and a method of manufacturing such a wrapper and such a filter.
申请公布号 US8720451(B2) 申请公布日期 2014.05.13
申请号 US201113702563 申请日期 2011.05.24
申请人 BARTRAM SABRINA;BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED 发明人 BARTRAM SABRINA
分类号 A24D1/02;A24C5/56 主分类号 A24D1/02
代理机构 代理人
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