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发明名称
Anordnung zum Regeln der mittleren Belastung in elektrischen Anlagen.
摘要
申请公布号
AT121887(B)
申请公布日期
1931.03.25
申请号
ATD121887
申请日期
1929.03.04
申请人
TELEFONAKTIEBOLAGET L. M. ERICSSON
发明人
分类号
主分类号
代理机构
代理人
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