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公开(公告)号：US2276724A
公开(公告)日：1942-03-17
申请号：US33292040
申请日：1940-05-02
Applicant: RCA CORP
Inventor： ALEXANDRE HOROWITZ , HARM FENNEMA PIETER
IPC: C07D203/14 , H03J5/12
CPC classification number: C07D203/14 , H03J5/12
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