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发明名称
摘要
申请公布号
BG18113(A1)
申请公布日期
1974.09.02
申请号
BG19720019807
申请日期
1972.02.24
申请人
发明人
分类号
G01N27/48;(IPC1-7):G01N27/48
主分类号
G01N27/48
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