发明名称 Expandable ashtray
摘要 An ashtray in which ashes and burned cigarettes are stored in an enclosed compartment for safety against fires and to prevent the resulting smells from spreading. The ashtray can be made larger or smaller depending upon the need for storage.
申请公布号 US4312346(A) 申请公布日期 1982.01.26
申请号 US19800136177 申请日期 1980.03.31
申请人 GRIGG, CHARLES E. 发明人 GRIGG, CHARLES E.
分类号 A24F19/00;(IPC1-7):A24F19/00 主分类号 A24F19/00
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