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公开(公告)号：CH636277A5
公开(公告)日：1983-05-31
申请号：CH691377
申请日：1977-06-03
Applicant: BASF AG
Inventor： NISSEN AXEL DR , HEILEN GERD DR , SAPPER EKKEHARD DR , FLIEGE WERNER DR , WITTWER ARNOLD DR
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