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公开(公告)号：US3223754A
公开(公告)日：1965-12-14
申请号：US7230560
申请日：1960-11-29
Applicant: BAYER AG
Inventor： REIMER COLIN , GERHARD SCHRADER
IPC: C07F9/40
CPC classification number: C07F9/4006
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