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公开(公告)号：US2125612A
公开(公告)日：1938-08-02
申请号：US4259235
申请日：1935-09-28
Applicant: RCA CORP
Inventor： HERBST PHILIP J , HEACOCK RALPH H , BINDLOSS PHILIP G
IPC: H03H7/24
CPC classification number: H03H7/24
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