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发明名称
DEMAGNETIZING DEVICE
摘要
申请公布号
GB8723550(D0)
申请公布日期
1987.11.11
申请号
GB19870023550
申请日期
1987.10.07
申请人
FRITSCH, J F;FRITSCH, R Y
发明人
分类号
G11B5/41;G11B5/465;G11B23/04
主分类号
G11B5/41
代理机构
代理人
主权项
地址
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