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发明名称
Purification du dianhydride et de l'acide pyromellitiques
摘要
申请公布号
FR1464278(A)
申请公布日期
1966.12.30
申请号
FR19650043351
申请日期
1965.12.23
申请人
PRINCETON CHEMICAL RESEARCH, INC.
发明人
分类号
C07C51/573
主分类号
C07C51/573
代理机构
代理人
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