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公开(公告)号：US2848447A
公开(公告)日：1958-08-19
申请号：US45753454
申请日：1954-09-21
Applicant: HOECHST AG
Inventor： HERBERT KRACKER , KURT GENGNAGEL
IPC: C09B29/033 , C09B29/08
CPC classification number: C09B29/0025 , C09B29/08 , Y10S8/918
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