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发明名称
摘要
申请公布号
FR2104169(A5)
申请公布日期
1972.04.14
申请号
FR19710029189
申请日期
1971.08.10
申请人
GAF CORP
发明人
分类号
G01N31/00;(IPC1-7):01N31/00;01N5/00
主分类号
G01N31/00
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代理人
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