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发明名称
Schaltungsanordnung fuer Telegrafenvermittlungsanlagen mit Selbstanschlussbetrieb und nur aus der Vermittlungsstelle gespeisten Teilnehmerstationen
摘要
申请公布号
DE666121(C)
申请公布日期
1938.10.12
申请号
DE1930S109905D
申请日期
1930.01.26
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
ROEMER OTTO
分类号
H04L12/00
主分类号
H04L12/00
代理机构
代理人
主权项
地址
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