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公开(公告)号：US2862019A
公开(公告)日：1958-11-25
申请号：US64446357
申请日：1957-03-07
Applicant: FABRENFABRIKEN BAYER AG
Inventor： GERHARD SCHRADER
IPC: C07F9/165
CPC classification number: C07F9/1651
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