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发明名称
Elektrische Fernmeldeeinrichtung, bei welcher zur Bildung von Signalstromkreisen beliebige Kombinationen von je mehr als zwei Leitungen benutzt werden
摘要
申请公布号
DE573173(C)
申请公布日期
1933.03.28
申请号
DE1928A055400D
申请日期
1928.09.22
申请人
AKTIENGESELLSCHAFT BROWN, BOVERI & CIE
发明人
分类号
H04Q9/06
主分类号
H04Q9/06
代理机构
代理人
主权项
地址
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