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公开(公告)号：US2688045A
公开(公告)日：1954-08-31
申请号：US28950452
申请日：1952-05-23
Applicant: STANDARD OIL DEV CO
Inventor： POWERS JOHN M , SPEED RAYMOND A
CPC classification number: B01D9/0013 , B01D9/0059 , C07C7/14 , C07C15/08
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