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公开(公告)号：US3012859A
公开(公告)日：1961-12-12
申请号：US74250158
申请日：1958-06-17
Applicant: STANDARD OIL CO
Inventor： MADISON KNIGHT HARMON , KELLY JOE T
IPC: C01B35/06
CPC classification number: C01B35/06
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