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公开(公告)号:BR7906990A
公开(公告)日:1980-07-22
申请号:BR7906990
申请日:1979-10-29
Applicant: IBM
Inventor: NEPELA D , MICHAELSEN J , BEVERLEY P , PHIPPS P
IPC: G11B5/66 , C22C19/07 , C22C38/00 , G11B5/64 , G11B5/84 , H01F10/14 , H01F10/16 , H01F41/18 , H01F41/20 , G11B5/62