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发明名称
Fernsprechanlage mit gemeinsamem Treffpunkt, in welchem mehr als zwei Fernsprechlinien zusammengeschaltet werden können.
摘要
申请公布号
CH144147(A)
申请公布日期
1930.12.15
申请号
CHD144147
申请日期
1929.08.10
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
AKTIENGESELLSCHAFT SIEMENS & HALSKE
分类号
主分类号
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代理人
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