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发明名称
ACICULAR COBALT MAGNETIC IRON OXIDE AND ITS MANUFACTURE
摘要
申请公布号
GB1589355(A)
申请公布日期
1981.05.13
申请号
GB19770045915
申请日期
1977.11.04
申请人
BASF AG
发明人
分类号
C01G49/06;C01G49/00;G11B5/706;H01F1/11;(IPC1-7):H01F1/11
主分类号
C01G49/06
代理机构
代理人
主权项
地址
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