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发明名称
PIIKUKENSHUTSUSOCHI
摘要
申请公布号
JPH0235947(B2)
申请公布日期
1990.08.14
申请号
JP19790152955
申请日期
1979.11.28
申请人
HITACHI LTD
发明人
ISAKA KAZUO
分类号
G01R19/04;G11B27/36
主分类号
G01R19/04
代理机构
代理人
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