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公开(公告)号：US2038484A
公开(公告)日：1936-04-21
申请号：US72878834
申请日：1934-06-02
Applicant: JON GAATHAUG
Inventor： JON GAATHAUG
IPC: C07C203/00
CPC classification number: C07C201/02 , C07C203/04
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