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发明名称
摘要
申请公布号
JPH0328845(U)
申请公布日期
1991.03.22
申请号
JP19890089701U
申请日期
1989.07.28
申请人
发明人
分类号
H04N5/60;H04B17/00;H04H20/12;H04H20/14;(IPC1-7):H04B17/00;H04H7/04
主分类号
H04N5/60
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