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发明名称
摘要
申请公布号
DE2009502(A1)
申请公布日期
1971.09.09
申请号
DE19702009502
申请日期
1970.02.28
申请人
发明人
分类号
C07C51/573;(IPC1-7):C07C51/00
主分类号
C07C51/573
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