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公开(公告)号:ZA796369B
公开(公告)日:1980-11-26
申请号:ZA796369
申请日:1979-11-23
Applicant: IBM
Inventor: CHURCH M , JONES R
IPC: G11B5/17 , G11B5/31 , G11B , H04R
公开(公告)号:ZA7906369B
申请号:ZA7906369
CPC classification number: G11B5/3136 , G11B5/313
公开(公告)号:BR7908415A
公开(公告)日:1980-09-23
申请号:BR7908415
申请日:1979-12-20
IPC: G11B5/17 , G11B5/31 , G11B5/12