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发明名称
摘要
申请公布号
FR2055678(A5)
申请公布日期
1971.05.07
申请号
FR19700027662
申请日期
1970.07.27
申请人
ETIENNE PIERRE
发明人
分类号
E04C2/54;E06B3/67;(IPC1-7):E06B9/00
主分类号
E04C2/54
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