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发明名称
DEVICE FOR CONVERSION AND SWITCHING SIGNALS
摘要
申请公布号
SU1566505(A1)
申请公布日期
1990.05.23
申请号
SU19884363775
申请日期
1988.01.13
申请人
CHURKIN VLADIMIR P,SU
发明人
CHURKIN VLADIMIR P,SU
分类号
G06F15/163;G06F15/16;H04M3/00;H04Q9/00
主分类号
G06F15/163
代理机构
代理人
主权项
地址
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