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发明名称
摘要
申请公布号
JPS5441607(Y2)
申请公布日期
1979.12.05
申请号
JP19730142914U
申请日期
1973.12.10
申请人
发明人
分类号
H04H40/81;(IPC1-7):H04H5/00
主分类号
H04H40/81
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