发明名称 Collapsible disposable funnel
摘要 A collapsible funnel having a body portion and a movable dam forming an integral part of the body portion located adjacent a fluid inlet for the funnel. The dam in operating condition is in the form of a movable wedge-like configuration.
申请公布号 US4108222(A) 申请公布日期 1978.08.22
申请号 US19760754530 申请日期 1976.12.27
申请人 UNION CARBIDE CORPORATION 发明人 KAUFMAN, GEORGE
分类号 B67C11/02;(IPC1-7):B65B39/00 主分类号 B67C11/02
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