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发明名称
DEVICE FOR EVALUATING VOICE FREQUENCY CHANNEL QUALITY
摘要
申请公布号
SU650236(A1)
申请公布日期
1979.02.28
申请号
SU19762377153
申请日期
1976.06.28
申请人
ZOTOV VALERIJ M,SU;PANKRATOV VLADIMIR P,SU;RYZHKOV ALEKSANDR G,SU
发明人
ZOTOV VALERIJ M,SU;PANKRATOV VLADIMIR P,SU;RYZHKOV ALEKSANDR G,SU
分类号
H04B3/46;(IPC1-7):H04B3/46
主分类号
H04B3/46
代理机构
代理人
主权项
地址
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