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公开(公告)号：US3076020A
公开(公告)日：1963-01-29
申请号：US2853060
申请日：1960-05-12
Applicant: BASF AG
Inventor： WALTER STILZ , HORST POMMER , ROBERT GEHM , OSWALD SCHMIDT , HEINRICH MERTERNS , WOLFGANG GRUNWALD
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