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公开(公告)号：US2691618A
公开(公告)日：1954-10-12
申请号：US35976653
申请日：1953-06-05
Applicant: PFIZER & CO C
Inventor： TANNER JR FRED W , LYNCH JOHN E , ROUTIEN JOHN B
IPC: C07G11/00
CPC classification number: C07G11/00 , Y10S435/886
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