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发明名称
CALLING SIGNAL AUDIO RECEIVER
摘要
申请公布号
SU658787(A1)
申请公布日期
1979.04.25
申请号
SU19782578395
申请日期
1978.01.30
申请人
BUTORIN LEONID A,SU;TKACHEV VIKTOR A,SU
发明人
BUTORIN LEONID A,SU;TKACHEV VIKTOR A,SU
分类号
H04Q3/04;(IPC1-7):H04Q3/04
主分类号
H04Q3/04
代理机构
代理人
主权项
地址
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