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发明名称
PUBLIC ADDRESS SYSTEM
摘要
申请公布号
GB2027319(A)
申请公布日期
1980.02.13
申请号
GB19790026063
申请日期
1979.07.26
申请人
SONY CORP
发明人
分类号
H04B5/00;H04B5/02;H04R3/02;H04R27/00;(IPC1-7):H04R3/02
主分类号
H04B5/00
代理机构
代理人
主权项
地址
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