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发明名称
摘要
申请公布号
FR2199571(A1)
申请公布日期
1974.04.12
申请号
FR19720033094
申请日期
1972.09.19
申请人
THEAULT YVES,FR
发明人
分类号
E04B1/19;E04B7/00;(IPC1-7):E04B7/00
主分类号
E04B1/19
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代理人
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