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公开(公告)号：US2518940A
公开(公告)日：1950-08-15
申请号：US71095046
申请日：1946-11-19
Applicant: SHELL DEV
Inventor： RUST FREDERICK F , VAUGHAN WILLIAM E , SEUBOLD FRANK H
IPC: C07C69/78
CPC classification number: C07C69/78
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