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发明名称
Schaltungsanordnung zur Sendung von Gleichstromstößen über pupinisierte Leitungen.
摘要
申请公布号
AT116830(B)
申请公布日期
1930.03.10
申请号
ATD116830
申请日期
1927.03.05
申请人
TELEFONAKTIEBOLAGET L. M. ERICSSON
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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