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公开(公告)号：US2202361A
公开(公告)日：1940-05-28
申请号：US10792036
申请日：1936-10-28
Applicant: RCA CORP
Inventor： JOHAN VERBEEK HENRI PETRUS , HUBERTUS TELLEGEN BERNARDUS DO
IPC: A01B15/12 , H03F1/50
CPC classification number: A01B15/12 , H03F1/50
