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发明名称
摘要
申请公布号
GB1305150(A)
申请公布日期
1973.01.31
申请号
GB19710019960
申请日期
1971.06.10
申请人
发明人
分类号
G01R17/00;H05B41/30;(IPC1-7):H03H7/42
主分类号
G01R17/00
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