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公开(公告)号：US2493151A
公开(公告)日：1950-01-03
申请号：US75236047
申请日：1947-06-04
Applicant: CELANESE CORP
Inventor： HAGUE LEVERS WILLIAM , HENRY BAINES RICHARD
IPC: D02H13/28
CPC classification number: D02H13/28
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