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发明名称
摘要
申请公布号
BG22671(A1)
申请公布日期
1977.04.20
申请号
BG19740028573
申请日期
1974.12.27
申请人
发明人
分类号
G01R29/20;(IPC1-7):G01R29/20
主分类号
G01R29/20
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代理人
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地址
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