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发明名称
摘要
申请公布号
JPS5221842(B2)
申请公布日期
1977.06.14
申请号
JP19710079618
申请日期
1971.10.09
申请人
发明人
分类号
H04M17/00;(IPC1-7):H04M17/00
主分类号
H04M17/00
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