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发明名称
TELEPHONE SIGNALLING CIRCUIT
摘要
申请公布号
IE30032(L)
申请公布日期
1967.06.07
申请号
IE19650001275
申请日期
1965.12.07
申请人
TELEFONAKTIEBOLAGET LM ERICSSON
发明人
分类号
H04Q1/30;(IPC1-7):H04Q1/30
主分类号
H04Q1/30
代理机构
代理人
主权项
地址
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