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公开(公告)号：US1707187A
公开(公告)日：1929-03-26
申请号：US6508525
申请日：1925-10-27
Applicant: STANDARD OIL DEV CO
Inventor： COBB ERNEST B , AUGUST HOLMES
IPC: C10G73/42
CPC classification number: C10G73/42
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