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发明名称
摘要
申请公布号
DE2062443(A1)
申请公布日期
1972.06.29
申请号
DE19702062443
申请日期
1970.12.18
申请人
发明人
分类号
E04C3/04;E04C3/08;E04C5/065;(IPC1-7):E04C5/06
主分类号
E04C3/04
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