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发明名称
Dispositif de fermeture pour puits, notamment pour abris anti-aériens
摘要
申请公布号
FR1368614(A)
申请公布日期
1964.07.31
申请号
FR19630947074
申请日期
1963.09.10
申请人
LUWA A. G.
发明人
分类号
E06B5/01;E06B5/14
主分类号
E06B5/01
代理机构
代理人
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