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发明名称
DEVICE FOR CONTINUOUSLY AUTOMATICALLY MONITORING QUALITY OF FOUR-WIRE TELEPHONE CHANNEL
摘要
申请公布号
SU767987(A2)
申请公布日期
1980.09.30
申请号
SU19782659598
申请日期
1978.08.15
申请人
KORKHINA FANYA G,SU;PROKOPOVICH NIKOLAJ N,SU;SOBENIN YAKOV A,SU;SHATUNOV VLADIMIR M,SU
发明人
KORKHINA FANYA G,SU;PROKOPOVICH NIKOLAJ N,SU;SOBENIN YAKOV A,SU;SHATUNOV VLADIMIR M,SU
分类号
H04J3/14;H04B3/46;(IPC1-7):H04J3/14
主分类号
H04J3/14
代理机构
代理人
主权项
地址
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