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公开(公告)号：US1968601A
公开(公告)日：1934-07-31
申请号：US71121834
申请日：1934-02-14
Applicant: SHELL DEV
Inventor： KARL EDLUND , THEODORE EVANS
IPC: C07C41/06
CPC classification number: C07C41/06 , C07C43/046 , C07C43/04
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