发明名称 Roadside emergency signalling device
摘要 A plastic information and signalling device having a cross-sectional triangular configuration which is adapted to hang over a partially opened vehicle window to communicate to observers the desired information or signal. The device has pockets into which information and signalling signs may be inserted to visibly display the message on these signs. The device is collapsable into a rectangular shape for convenient storage.
申请公布号 US4178874(A) 申请公布日期 1979.12.18
申请号 US19780915154 申请日期 1978.06.13
申请人 BERNS, MICHAEL S;CHAFE, WILLIAM J 发明人 BERNS, MICHAEL S;CHAFE, WILLIAM J
分类号 B60Q7/00;G09F21/04;(IPC1-7):G09F21/04 主分类号 B60Q7/00
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