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发明名称
摘要
申请公布号
GB1238312(A)
申请公布日期
1971.07.07
申请号
GBD1238312
申请日期
1968.09.20
申请人
发明人
分类号
G01N27/92;G01R31/02
主分类号
G01N27/92
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