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发明名称
Fernsprechanlage mit Wählerbetrieb und Stromstossspeichern.
摘要
申请公布号
CH140874(A)
申请公布日期
1930.06.30
申请号
CHD140874
申请日期
1929.05.27
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
AKTIENGESELLSCHAFT SIEMENS & HALSKE
分类号
主分类号
代理机构
代理人
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