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发明名称
Schaltungsanordnung fuer Fernsprechanlagen mit Waehlerbetrieb und Anschlussleitungen mit Ortsbatterie- und solchen mit Zentralbatteriespeisung
摘要
申请公布号
DE683939(C)
申请公布日期
1939.11.18
申请号
DE1934S115902D
申请日期
1934.10.28
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
WOCHINGER DIPL.-ING. EDUARD
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
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