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发明名称
Verfahren zur logarithmischen Anzeige von Wechselspannungen
摘要
申请公布号
DE700809(C)
申请公布日期
1940.12.31
申请号
DE193601S1583D
申请日期
1936.02.16
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
HELLMANN DIPL.-ING. REINHARD
分类号
G01R15/00
主分类号
G01R15/00
代理机构
代理人
主权项
地址
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