发明名称 Hazard warning sign
摘要 A hazard warning sign assembly having a sign plate displaying a warning message, and at least one flashing light and horn for generating visual and audible signals for attracting attention to the sign. A rechargeable battery pack forms a detachable handle for the sign plate and the signal housing. A telescoping pole portion mounted to the lower end of the elongate battery pack is provided for height adjustment of the assembly. Manually operable switch buttons control actuation of the flashing light and horn units.
申请公布号 US6035567(A) 申请公布日期 2000.03.14
申请号 US19960685066 申请日期 1996.07.23
申请人 CAMERON, ROBERT W. 发明人 CAMERON, ROBERT W.
分类号 G09F7/20;G09F13/04;G09F15/00;(IPC1-7):G09F21/02 主分类号 G09F7/20
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