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公开(公告)号：US2497929A
公开(公告)日：1950-02-21
申请号：US70548046
申请日：1946-10-24
Applicant: STANDARD OIL DEV CO
Inventor： KARL COHEN , MCARDLE EDWARD H
IPC: C09K5/08
CPC classification number: C09K5/08
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