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发明名称
VERFAHREN ZUR HERSTELLUNG VON AROMATISCHEN POLYBENZIMIDAZOLEN
摘要
申请公布号
DE2042623(B2)
申请公布日期
1973.02.15
申请号
DE19702042623
申请日期
1970.08.27
申请人
发明人
分类号
C08G73/18;(IPC1-7):C08G33/02
主分类号
C08G73/18
代理机构
代理人
主权项
地址
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