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公开(公告)号：US2684731A
公开(公告)日：1954-07-27
申请号：US11697649
申请日：1949-09-21
Applicant: STANDARD OIL DEV CO
Inventor： STARR JR CHARLES E , NEWCHURCH EDWIN J
CPC classification number: B01D53/10 , B01D53/08 , B01D2253/102 , B01D2257/702 , B01D2259/40083 , C01B32/30
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