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发明名称
MAGNETIC MATERIALS
摘要
申请公布号
GB1565301(A)
申请公布日期
1980.04.16
申请号
GB19770002200
申请日期
1977.01.20
申请人
DATA RECORDING INSTRUMENT CO LTD
发明人
分类号
G11B5/127;(IPC1-7):G11B5/84;B23P3/20;G11B5/27
主分类号
G11B5/127
代理机构
代理人
主权项
地址
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