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公开(公告)号：US2243843A
公开(公告)日：1941-06-03
申请号：US23289838
申请日：1938-10-01
Applicant: CELANESE CORP
Inventor： DONALD FINLAYSON , LESLIE GREENWOOD EREST , PRIDE DEE THOMAS
CPC classification number: D06P5/02
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