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1.发明授权Frequency selective coupling device having ferrite elements biased to different resonant frequencies 失效频率选择耦合器件具有偏置到不同谐振频率的铁氧体元件
公开(公告)号：US3274519A
公开(公告)日：1966-09-20
申请号：US34260864
申请日：1964-02-05
Applicant: LAB FOR ELECTRONICS INC
Inventor： LESLIE NATHANSON
IPC: H01P1/213
CPC classification number: H01P1/213
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