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发明名称
Ferromagnetic iron oxides for magnetic recording media
摘要
申请公布号
GB903789(A)
申请公布日期
1962.08.22
申请号
GB19600000100
申请日期
1960.01.01
申请人
C. K. WILLIAMS & CO.
发明人
AYERS JOSEPH W.;STEPHENS ROBERT A.
分类号
G11B5/706
主分类号
G11B5/706
代理机构
代理人
主权项
地址
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