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公开(公告)号：US2702295A
公开(公告)日：1955-02-15
申请号：US21645851
申请日：1951-03-19
Applicant: CIBA LTD
Inventor： ERNST STOECKLIN , PETER SCHOBEL
IPC: C07D333/64
CPC classification number: C07D333/64
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