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发明名称
摘要
申请公布号
JPS5219049(B1)
申请公布日期
1977.05.25
申请号
JP19710006624
申请日期
1971.02.15
申请人
发明人
分类号
H04J3/00;H04Q3/72;H04Q11/04;(IPC1-7):H04Q3/72
主分类号
H04J3/00
代理机构
代理人
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