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发明名称
Direct-current measuring device
摘要
申请公布号
US2217435(A)
申请公布日期
1940.10.08
申请号
US19380209277
申请日期
1938.05.21
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
EDLER HANS
分类号
G01R15/18
主分类号
G01R15/18
代理机构
代理人
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地址
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