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公开(公告)号：US2642448A
公开(公告)日：1953-06-16
申请号：US6031248
申请日：1948-11-16
Applicant: STANDARD OIL DEV CO
Inventor： IVAN MAYER , JOHNSON VIRGINIA C
IPC: C07C1/04
CPC classification number: C07C1/047 , C07C2523/745
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