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发明名称
摘要
申请公布号
JPS4826988(U)
申请公布日期
1973.03.31
申请号
JP19710068067U
申请日期
1971.08.02
申请人
发明人
分类号
G01N31/22;(IPC1-7):G01N31/22;G01N21/04
主分类号
G01N31/22
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代理人
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