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公开(公告)号：US2578657A
公开(公告)日：1951-12-18
申请号：US4558848
申请日：1948-08-21
Applicant: SHELL DEV
Inventor： ANDERSON HENRY W , SAMSON OTTO A , CLARK AUGUSTUS W
IPC: C07C309/62
CPC classification number: C07C309/62
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