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公开(公告)号：US2454950A
公开(公告)日：1948-11-30
申请号：US68870646
申请日：1946-08-06
Applicant: CELANESE CORP
Inventor： JOHN SIMPSON WILLIAM , DONALD FINLAYSON
IPC: C08B3/30
CPC classification number: C08B3/30
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