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发明名称
摘要
申请公布号
FR2512865(B1)
申请公布日期
1984.04.20
申请号
FR19810017452
申请日期
1981.09.16
申请人
BRUGEAUD ROGER
发明人
分类号
E04B2/68;E04C2/20;(IPC1-7):04C1/08
主分类号
E04B2/68
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