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公开(公告)号：US2993051A
公开(公告)日：1961-07-18
申请号：US71757058
申请日：1958-02-26
Applicant: COWLES CHEM CO
Inventor： TRUCHAN JR ANTHONY , DAVIDSON JOHN B
IPC: C07D213/81
CPC classification number: C07D213/81
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