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发明名称
摘要
申请公布号
JPS57500132(A)
申请公布日期
1982.01.21
申请号
JP19810501000
申请日期
1981.02.17
申请人
发明人
分类号
H04B3/54;H04L27/18;H04L27/22
主分类号
H04B3/54
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代理人
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地址
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