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发明名称
Zusammenklappbarer Staender fuer Verkehrszeichen
摘要
申请公布号
DE700316(C)
申请公布日期
1940.12.18
申请号
DE1938L095789D
申请日期
1938.07.29
申请人
THEODOR LAUDAHN
发明人
LAUDAHN THEODOR
分类号
E01F9/012
主分类号
E01F9/012
代理机构
代理人
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