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发明名称
Schaltungsanordnung fuer Telegraphenanlagen mit mehreren an einer gemeinsamen Ruhestromleitung liegenden, wahlweise anzurufenden und miteinander verkehrenden Stationen
摘要
申请公布号
DE634421(C)
申请公布日期
1936.08.28
申请号
DE1933S107992D
申请日期
1933.01.21
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
分类号
H04L12/40
主分类号
H04L12/40
代理机构
代理人
主权项
地址
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