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发明名称
Vorrichtung zur UEberlagerung von tonfrequenten Stroemen ueber bestehende Gleichstrom- und Einphasenwechselstrom-Dreileiteranlagen mit zwei Aussenleitern und einem Nulleiter zur Fernsteuerung von Frequenzrelais
摘要
申请公布号
DE559321(C)
申请公布日期
1932.09.19
申请号
DE1927I032884D
申请日期
1927.12.06
申请人
ISARIA-ZAEHLERWERKE A. G.
发明人
DAUNDERER DIPL.-ING. ALOIS
分类号
H02J13/00
主分类号
H02J13/00
代理机构
代理人
主权项
地址
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