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公开(公告)号：US3449438A
公开(公告)日：1969-06-10
申请号：US3449438D
申请日：1964-11-19
Applicant: BASF AG
Inventor： FREYSCHLAG HERWIG , REIF WERNER , NUERRENBACH AXEL , SARNECKI WILHELM
CPC classification number: C07F9/5352 , A01N57/22
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