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公开(公告)号：US3250820A
公开(公告)日：1966-05-10
申请号：US80652459
申请日：1959-04-15
Applicant: SHELL DEV
Inventor： DUTHIE ROBERT G
IPC: C07C7/171
CPC classification number: C07C7/171 , Y10S585/901 , C07C11/10
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