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公开(公告)号：US2969344A
公开(公告)日：1961-01-24
申请号：US67694857
申请日：1957-08-08
Applicant: SUN OIL CO
Inventor： DOBSON ERNEST W , KELLV THOMAS J
IPC: C08F110/06
CPC classification number: C08F110/06
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