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1.Level regenerating arrangement for transmission of bipolar signals 失效
Title translation: 用于双极信号传输的电平再生装置公开(公告)号:US3304508A
公开(公告)日:1967-02-14
申请号:US42701565
申请日:1965-01-21
Applicant: ERICSSON TELEFON AB L M
CPC classification number: H04L25/065 , H03K5/01 , H04L25/064