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公开(公告)号:DE2965052D1
公开(公告)日:1983-04-21
申请号:DE2965052
申请日:1979-12-04
Applicant: IBM
Inventor: ANDERSON NATHANIEL CARL , GROVER JR
IPC: C25D7/00 , C25D3/56 , G11B5/31 , G11B5/858 , H01F10/14 , H01F41/26