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公开(公告)号:US3409848A
公开(公告)日:1968-11-05
申请号:US67889267
申请日:1967-10-30
申请人: BELL TELEPHONE LABOR INC
发明人: MEITZLER ALLEN H , TIERSTEN HARRY F
IPC分类号: G10K11/24 , G10K11/36 , H02M7/10 , H03H7/42 , H03H9/02 , H03H9/30 , H03H9/36 , H03H9/46
CPC分类号: G10K11/36 , G10K11/24 , H02M7/10 , H03H7/42 , H03H9/02881 , H03H9/30 , H03H9/36 , H03H9/46