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公开(公告)号：US2431454A
公开(公告)日：1947-11-25
申请号：US63625245
申请日：1945-12-20
Applicant: STANDARD OIL DEV CO
Inventor： HENRY BERK , YOUNG DAVID W
IPC: C07C4/00
CPC classification number: C07C4/00 , C07C2527/08 , C07C11/02
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