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发明名称
摘要
申请公布号
JPS57147751(U)
申请公布日期
1982.09.17
申请号
JP19810034262U
申请日期
1981.03.13
申请人
发明人
分类号
G01N21/91;(IPC1-7):G01N21/91
主分类号
G01N21/91
代理机构
代理人
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地址
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