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公开(公告)号：US2325566A
公开(公告)日：1943-07-27
申请号：US31962040
申请日：1940-02-19
Applicant: STANDARD OIL CO
Inventor： WILEY EDWIN G , GROSHANS LEONARD A , MCNEIL CLAUDE P
IPC: C01B17/92
CPC classification number: C01B17/92 , Y10S159/19
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