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公开(公告)号：US2951085A
公开(公告)日：1960-08-30
申请号：US65238257
申请日：1957-04-12
Applicant: HOECHST AG
Inventor： KARL CLAUSS , CLAUS BEERMANN
IPC: C07F7/28
CPC classification number: C07F7/28
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