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发明名称
SCHALTUNGSANORDNUNG ZUR UEBERTRAGUNG VON TONFREQUENTEN WAEHLINFORMATIONEN UB FERNMELDE INSBESONDERE FERNSPRECH VERMITTLUNGSANLAGEN
摘要
申请公布号
DE1537770(B2)
申请公布日期
1971.02.18
申请号
DE19671537770
申请日期
1967.09.25
申请人
发明人
分类号
H04Q1/444;H04Q1/453;(IPC1-7):H04Q1/46
主分类号
H04Q1/444
代理机构
代理人
主权项
地址
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