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公开(公告)号：US3527797A
公开(公告)日：1970-09-08
申请号：US3527797D
申请日：1967-10-17
Applicant: BASF AG
Inventor： KRABETZ RICHARD , ENGELBACH HEINZ , ZINKE-ALLMANG HELMUT
CPC classification number: C07C51/252 , C07C57/04
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