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公开(公告)号：US2529236A
公开(公告)日：1950-11-07
申请号：US2466748
申请日：1948-05-01
Applicant: SHELL DEV
Inventor： HART MARIUS T , ARNOUT WEEDA KRIJN
CPC classification number: B01J23/94 , C07C45/50 , Y02P20/584 , C07C47/02
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