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发明名称
摘要
申请公布号
JPS5217684(B2)
申请公布日期
1977.05.17
申请号
JP19710060075
申请日期
1971.08.07
申请人
发明人
分类号
H04J3/17;H04M1/60;H04M9/10;(IPC1-7):H04M9/10
主分类号
H04J3/17
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代理人
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