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发明名称
Eiswarner
摘要
Ice warner, especially for placing on a road or roadside guiding sign has a mark, applied to a contrasting background, which contains a thermochromatic material (I) that changes its optical properties at temperatures near freezing point.
申请公布号
DE19819817(C2)
申请公布日期
2001.02.08
申请号
DE1998119817
申请日期
1998.05.04
申请人
BREHM, ROBERT
发明人
BREHM, ROBERT;LENGFELDNER, ERHARD;PUGH, ROBERT
分类号
E01F9/00;E01F9/011
主分类号
E01F9/00
代理机构
代理人
主权项
地址
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