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发明名称
Schaltungsanordnung fuer Fernsprechanlagen mit Waehlerbetrieb, insbesondere fuer Nebenstellenanlagen
摘要
申请公布号
DE497337(C)
申请公布日期
1930.05.07
申请号
DE1921S057194D
申请日期
1921.08.04
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
WASCHNACK ADOLF
分类号
H04Q3/62
主分类号
H04Q3/62
代理机构
代理人
主权项
地址
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