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公开(公告)号：US2709165A
公开(公告)日：1955-05-24
申请号：US32633852
申请日：1952-12-16
Applicant: HOECHST AG
Inventor： WILHELM SEIDENFADEN , HANS THOMAE
IPC: H01H13/56
CPC classification number: C07C311/37 , C07C2601/14
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