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1.发明授权
公开(公告)号：US3234271A
公开(公告)日：1966-02-08
申请号：US26591463
申请日：1963-03-18
Applicant: HALCON INTERNATIONAL INC
Inventor： BARKER ROBERT S , COHEN MAX A
IPC: C07C51/31
CPC classification number: C07C51/313 , C07C55/14
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