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发明名称
摘要
申请公布号
JPH0449861(U)
申请公布日期
1992.04.27
申请号
JP19900091363U
申请日期
1990.08.30
申请人
发明人
分类号
G01N31/00;G01N31/22;(IPC1-7):G01N31/00
主分类号
G01N31/00
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代理人
主权项
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