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1.发明授权
公开(公告)号：US2721113A
公开(公告)日：1955-10-18
申请号：US33111553
申请日：1953-01-13
Applicant: BRITISH CELANESE
Inventor： JOHN DOWNING , ARTHUR HODGE , NAPIER DREWITT JAMES GERDON
IPC: C08F8/00
CPC classification number: C08F8/00 , C08F8/12 , C08F120/44
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