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发明名称
Verfahren zur Messung von Gleichspannungen und schwachen Gleichstroemen
摘要
申请公布号
DE716235(C)
申请公布日期
1942.01.15
申请号
DE1939R105178D
申请日期
1939.05.09
申请人
DR. HANS RICHTER
发明人
RICHTER DR. HANS
分类号
G01R19/165
主分类号
G01R19/165
代理机构
代理人
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