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公开(公告)号：US2676995A
公开(公告)日：1954-04-27
申请号：US23245351
申请日：1951-06-19
Applicant: STANDARD OIL DEV CO
Inventor： JOSEPH STEWART , HAKALA THOMAS H
IPC: C07C29/88
CPC classification number: C07C29/88 , C07C31/125
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