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公开(公告)号：US2948747A
公开(公告)日：1960-08-09
申请号：US47253054
申请日：1954-12-01
Applicant: ETHYL CORP
Inventor： KARBUM AUGUST C , BOAG JAMES C
IPC: C10L1/18
CPC classification number: C10L1/1814
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