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经营范围
发明名称
MAGNETIC RECORDING MEDIUM
摘要
申请公布号
US3558353(A)
申请公布日期
1971.01.26
申请号
USD3558353
申请日期
1967.08.23
申请人
NIPPON COLUMBIA KK.
发明人
SHIGEHISA HARADA;TERUMI KOJIMA
分类号
C09D5/23;G11B5/702;(IPC1-7):H01F10/02
主分类号
C09D5/23
代理机构
代理人
主权项
地址
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