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公开(公告)号：US2574521A
公开(公告)日：1951-11-13
申请号：US4304448
申请日：1948-08-07
Applicant: CELANESE CORP
Inventor： BAILEY DANA L , BARD ROBERT C
CPC classification number: D01D1/106 , B01D29/23 , B01D35/02 , B01D2201/0438
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