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发明名称
摘要
申请公布号
JPS5724979(B2)
申请公布日期
1982.05.27
申请号
JP19740078058
申请日期
1974.07.08
申请人
发明人
分类号
H04J3/00;H03D3/00;H04L27/227
主分类号
H04J3/00
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代理人
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地址
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