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公开(公告)号：US2777888A
公开(公告)日：1957-01-15
申请号：US35243453
申请日：1953-05-01
Applicant: STANDARD OIL CO
Inventor： HOFF MELYERN C , PETERSON KENNETH C
CPC classification number: B01D9/0004 , B01D9/0036 , B01D9/0059 , C07C7/14 , C07C15/08
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