发明名称 Extended release fragrance dispensing cartridge
摘要 A cartridge for an air freshener is disclosed, having a pad sealed within a housing by an air-permeable membrane. The density, permeability, and fiber characteristics of the pad and membrane are selected to achieve extended life while maintaining satisfactory air freshening performance.
申请公布号 US5230867(A) 申请公布日期 1993.07.27
申请号 US19910681236 申请日期 1991.04.05
申请人 WATERBURY COMPANIES, INC. 发明人 KUNZE, WALTER A.;SEMANCHIK, ROBERT J.
分类号 A61L9/12 主分类号 A61L9/12
代理机构 代理人
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