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发明名称
Vorrichtung zum Messen von Spannungen, insbesondere sehr kleinen Spannungen
摘要
申请公布号
DE1093007(B)
申请公布日期
1960.11.17
申请号
DE1957N014176
申请日期
1957.10.08
申请人
N.V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
ZELST JOHANNES JACOBUS ZAALBERG VAN;NIE AART GERARD VAN
分类号
G01R19/18
主分类号
G01R19/18
代理机构
代理人
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地址
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