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公开(公告)号：DE1643692A1
公开(公告)日：1972-04-20
申请号：DE1643692
申请日：1967-11-10
Applicant: BASF AG
Inventor： HERRMANN GUENTHER DR , HORNBERGER PAUL DR , KUBE WOLFGANG DIPL-ING , WEISS EMIL DR
IPC: C07C29/50
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