发明名称 |
Sign for optical and acoustic warning of persons in tunnels and underground garages is a folded structure which is made of a transparent plastic sheet, and has a triangular cross section |
摘要 |
<p>The sign (10) for optical and acoustic warning of persons in tunnels and underground garages about a breakdown of a ventilation plant or about a high carbon monoxide level is a folded structure which is made of a transparent plastic sheet, and has a triangular cross section.</p> |
申请公布号 |
DE20212467(U1) |
申请公布日期 |
2003.01.16 |
申请号 |
DE2002212467U |
申请日期 |
2002.08.12 |
申请人 |
HOELLDOBLER, JOHANN |
发明人 |
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分类号 |
G09F19/22;G09F27/00;(IPC1-7):E04H6/42 |
主分类号 |
G09F19/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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