发明名称 Lightweight collapsible sign
摘要 The invention provides a portable, collapsible sign stand assembly in which a sign is suspended from a support tube. The support tube is connected to a support base through a connecting member which includes a plurality of weakening members which cause the connecting member to fail upon impact. In other embodiments, the support tube is weakened by weakening members so as to fail upon impact. In one embodiment, the weakened portions are placed under tension.
申请公布号 US6792708(B2) 申请公布日期 2004.09.21
申请号 US20030438041 申请日期 2003.05.14
申请人 DICKE TOOL COMPANY 发明人 DICKE GRANT D.;KOKENAS JAMES G.;HANS DONALD E.
分类号 G09F15/00;G09F17/00;(IPC1-7):G09F15/00 主分类号 G09F15/00
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