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发明名称
摘要
申请公布号
JPS5219447(Y2)
申请公布日期
1977.05.04
申请号
JP19720053466U
申请日期
1972.05.08
申请人
发明人
分类号
H04M1/21;H04M1/64;(IPC1-7):H04M1/21
主分类号
H04M1/21
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代理人
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