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发明名称
摘要
申请公布号
JPS5843056(U)
申请公布日期
1983.03.23
申请号
JP19810137339U
申请日期
1981.09.16
申请人
发明人
分类号
H04H20/14;H04H20/31;H04H60/37;H04N17/00;(IPC1-7):H04H7/04;H04N7/02
主分类号
H04H20/14
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代理人
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