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发明名称
摘要
申请公布号
SU557501(A1)
申请公布日期
1977.05.05
申请号
SU19752135503
申请日期
1975.05.19
申请人
发明人
分类号
H04L7/06;H03K5/156;(IPC1-7):H04L7/06;H03K5/15
主分类号
H04L7/06
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代理人
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