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发明名称
ANORDNUNG ZUR WECHSELSTROMTELEGRAFIE- UND/ODER DATENUEBERTRAGUNG MIT FREQUENZUMTASTUNG
摘要
申请公布号
DE2048118(B2)
申请公布日期
1972.09.28
申请号
DE19702048118
申请日期
1970.09.30
申请人
发明人
分类号
H04L5/06;(IPC1-7):H04L27/10
主分类号
H04L5/06
代理机构
代理人
主权项
地址
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