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发明名称
摘要
申请公布号
JPS509263(B1)
申请公布日期
1975.04.11
申请号
JP19700101693
申请日期
1970.11.18
申请人
发明人
分类号
H04L25/52;H03K3/70;H03K5/00;H04B1/00;H04B3/36;H04L7/02
主分类号
H04L25/52
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