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发明名称
Schaltungsanordnung fuer die Gespraechszaehlung bei Fernsprechnebenstellenumschaltern
摘要
申请公布号
DE809317(C)
申请公布日期
1951.07.26
申请号
DE1949P032436D
申请日期
1949.01.25
申请人
FRIEDRICH MERK TELEFONBAU A. G.
发明人
BRUCKNER HANS
分类号
H04M15/10
主分类号
H04M15/10
代理机构
代理人
主权项
地址
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