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发明名称
Einrichtung zum selbsttätigen Gleichhalten von Stromstärken oder Spannungen, vorzugsweise für Meßzwecke.
摘要
申请公布号
AT155767(B)
申请公布日期
1939.03.25
申请号
ATD155767
申请日期
1937.10.04
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
DR. LUDWIG MERZ
分类号
主分类号
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