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公开(公告)号：CA894254A
公开(公告)日：1972-02-29
申请号：CA894254D
Applicant: BASF AG
Inventor： DUEMBGEN GERD , WALZ HELMUT , HOHENSCHUTZ HEINZ , KERBER HORST , HEESEMANN GUENTHER , ROTHE ROBERT , GAERTNER DIETER
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