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公开(公告)号：US2208362A
公开(公告)日：1940-07-16
申请号：US25488539
申请日：1939-02-06
Applicant: SHELL DEV
Inventor： FREDERIK ENGEL WILLEM
IPC: C07C5/27
CPC classification number: C07C5/2789 , C07C9/12 , C07C9/00
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