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发明名称
摘要
申请公布号
JPS5437218(Y2)
申请公布日期
1979.11.08
申请号
JP19740157009U
申请日期
1974.12.26
申请人
发明人
分类号
H04M3/22;H01H67/26;H04Q1/20;(IPC1-7):H04Q1/20
主分类号
H04M3/22
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