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公开(公告)号：CH529823A
公开(公告)日：1972-10-31
申请号：CH838570
申请日：1970-06-04
Applicant: BASF AG
Inventor： HORST BELDE , DAUBACH EWALD DR , GUENTHER WORF , BAYEW DIMITER DR , LUEBCKE ENNO DR
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