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公开(公告)号：US2635709A
公开(公告)日：1953-04-21
申请号：US11177249
申请日：1949-08-22
Applicant: STANDARD OIL DEV CO
Inventor： ARCHIBALD FRANCIS M , KONRAD WILLIAM A , HANEY ROY E D
IPC: C07C7/12
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