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发明名称
摘要
申请公布号
NL6917691(A)
申请公布日期
1970.05.29
申请号
NL19690017691
申请日期
1969.11.24
申请人
发明人
分类号
C07C7/12;(IPC1-7):C07C7/00
主分类号
C07C7/12
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