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经营范围
发明名称
MAGNETIC HEAD DEVICE
摘要
申请公布号
JPH0250369(A)
申请公布日期
1990.02.20
申请号
JP19880202550
申请日期
1988.08.12
申请人
SONY CORP
发明人
KURODA MASAYUKI
分类号
G11B21/21
主分类号
G11B21/21
代理机构
代理人
主权项
地址
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