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发明名称
摘要
申请公布号
FR2048270(A5)
申请公布日期
1971.03.19
申请号
FR19690043278
申请日期
1969.12.08
申请人
JOSSET MAURICE
发明人
分类号
E04B2/86;(IPC1-7):E04B2/00
主分类号
E04B2/86
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