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发明名称
Improvements in arrangements for measuring differences of potential
摘要
申请公布号
GB497057(A)
申请公布日期
1938.12.07
申请号
GB19370015780
申请日期
1937.06.07
申请人
EMIL HENRY GREIBACH
发明人
分类号
G01R19/10
主分类号
G01R19/10
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代理人
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