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发明名称
摘要
申请公布号
JPS6237256(Y2)
申请公布日期
1987.09.22
申请号
JP19820110296U
申请日期
1982.07.22
申请人
发明人
分类号
G01N3/00;G09B23/40;G09B25/00;(IPC1-7):G09B23/40
主分类号
G01N3/00
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