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经营范围
发明名称
Novel polypyromellitimides
摘要
申请公布号
GB762152(A)
申请公布日期
1956.11.21
申请号
GB19540024345
申请日期
1954.08.20
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
分类号
C08G73/10
主分类号
C08G73/10
代理机构
代理人
主权项
地址
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