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发明名称
INSTRUMENT FOR MEASURING SURFACE CONTAMINATION OF RECORDING MEDIUM
摘要
申请公布号
JPS6425385(A)
申请公布日期
1989.01.27
申请号
JP19870180925
申请日期
1987.07.22
申请人
HITACHI LTD
发明人
ANDOU YOSHISHIGE
分类号
G11B23/50;G11B33/00;G11B33/14
主分类号
G11B23/50
代理机构
代理人
主权项
地址
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