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公开(公告)号：US2739146A
公开(公告)日：1956-03-20
申请号：US39634753
申请日：1953-12-04
Applicant: HOECHST AG
Inventor： REINHOLD WEIGELE , RICHARD HUSS
CPC classification number: C09B35/08 , C09B35/105 , D21H21/28
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