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发明名称
VERFAHREN ZUR ABSCHEIDUNG VON PHTHALSAEUREANHYDRID
摘要
申请公布号
DE2255400(A1)
申请公布日期
1974.05.30
申请号
DE19722255400
申请日期
1972.11.11
申请人
DAVY POWERGAS GMBH, 5000 KOELN
发明人
GEHRKEN, HUBERT, 5023 WEIDEN;KEUNECKE, GERHARD, 5021 GEYEN
分类号
B01D7/02;C07C51/573;C07D307/89;(IPC1-7):C07C63/18;C07C63/02
主分类号
B01D7/02
代理机构
代理人
主权项
地址
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