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发明名称
摘要
申请公布号
JPS57168071(U)
申请公布日期
1982.10.22
申请号
JP19810055431U
申请日期
1981.04.17
申请人
发明人
分类号
G01R21/00;(IPC1-7):G01R21/00
主分类号
G01R21/00
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代理人
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