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经营范围
发明名称
PREPARATION OF DIPERPHTHALIC ACIDS
摘要
申请公布号
US3655738(A)
申请公布日期
1972.04.11
申请号
USD3655738
申请日期
1969.10.31
申请人
PPG INDUSTRIES INC.
发明人
DONALD R. NIELSEN
分类号
C07C409/30;(IPC1-7):C07C73/10
主分类号
C07C409/30
代理机构
代理人
主权项
地址
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