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发明名称
摘要
申请公布号
GB1226251(A)
申请公布日期
1971.03.24
申请号
GBD1226251
申请日期
1969.01.15
申请人
发明人
分类号
C07D239/54;C07D239/545;C07D473/08
主分类号
C07D239/54
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