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发明名称
DUPLEX FREQUENCY TELEGRAPHY SIGNAL DETECTOR
摘要
申请公布号
SU617860(A1)
申请公布日期
1978.07.30
申请号
SU19772461791
申请日期
1977.03.11
申请人
REZNITSKIJ MIKHAIL S,SU
发明人
REZNITSKIJ MIKHAIL S,SU
分类号
H04L27/14;(IPC1-7):H04L27/14
主分类号
H04L27/14
代理机构
代理人
主权项
地址
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