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1.

发明专利
Magnetic recording medium 失效

公开(公告)号：JPS59213074A

公开(公告)日：1984-12-01

申请号：JP1458684

申请日：1984-01-31

Applicant: Ibm

Inventor： SORU KURONJIERUBU , RUBOMIA TARASU ROMANKIYUU , ROBAATO ARAN SUKURANTON , DEEBITSUDO AREN TOMUPUSON

IPC: G11B5/012 , G11B5/596 , G11B5/73 , G11B5/82 , G11B23/30

CPC classification number: G11B5/596 , G11B5/012 , G11B5/82

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