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发明名称
Impedance measuring device
摘要
申请公布号
GB622125(A)
申请公布日期
1949.04.27
申请号
GB19460028047
申请日期
1946.09.18
申请人
GUY FREDRIK VON DARDEL
发明人
分类号
G01R17/00
主分类号
G01R17/00
代理机构
代理人
主权项
地址
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