发明名称 Pipe bowl filter
摘要 A tobacco pipe is provided having a bowl, stem and filter. The filter is inserted into the bowl. The filter is substantially cylindrical in shape having a perforated foil cap located on top of the filter. Associated with the filter is a pull wire so that the filter can be retrieved by the user. The filter removes condensed liquids containing tar and nicotine and also filters the smoke.
申请公布号 US4687005(A) 申请公布日期 1987.08.18
申请号 US19850785225 申请日期 1985.11.07
申请人 MOORE, HARRY C. 发明人 MOORE, HARRY C.
分类号 A24F1/20;A24F5/08;(IPC1-7):A24F3/02 主分类号 A24F1/20
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