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公开(公告)号：US2548976A
公开(公告)日：1951-04-17
申请号：US72362447
申请日：1947-01-22
Applicant: CELANESE CORP
Inventor： MAXIMILIAN HIBBERT HAROLD , JOHN HOLROYD , HENRY BAINES RICHARD
CPC classification number: B65H75/025 , D02H3/00
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