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发明名称
摘要
申请公布号
FR2300861(B1)
申请公布日期
1982.03.26
申请号
FR19750022605
申请日期
1975.07.18
申请人
SADACEM
发明人
分类号
E04B2/88;E04B2/90;E04F13/08;(IPC1-7):E04B2/82
主分类号
E04B2/88
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