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发明名称
MAGNETIC RECORDING MEDIUM
摘要
申请公布号
JPS6050725(A)
申请公布日期
1985.03.20
申请号
JP19830159853
申请日期
1983.08.31
申请人
RICOH KK
发明人
KATSURAGAWA TADAO
分类号
G11B5/708;C09D5/23;C09D7/12;G11B5/706
主分类号
G11B5/708
代理机构
代理人
主权项
地址
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