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经营范围
发明名称
NITROGEN-CONTAINING AROMATIC POLYMERS
摘要
申请公布号
GB1512691(A)
申请公布日期
1978.06.01
申请号
GB19750023689
申请日期
1975.05.30
申请人
TEIJIN LTD
发明人
分类号
B01D71/62;C08G73/06;(IPC1-7):C08G73/02
主分类号
B01D71/62
代理机构
代理人
主权项
地址
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