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公开(公告)号：US2872441A
公开(公告)日：1959-02-03
申请号：US66161057
申请日：1957-05-27
Applicant: HOECHST AG
Inventor： HERBERT KRACKER , ROLAND BAMBERGER
IPC: C09B29/033 , C09B29/20
CPC classification number: C09B29/0025 , C09B29/20 , Y10S8/918
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