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发明名称
摘要
申请公布号
JPH0345539(U)
申请公布日期
1991.04.26
申请号
JP19890107634U
申请日期
1989.09.12
申请人
发明人
分类号
G03B27/50;H04N1/04;(IPC1-7):G03B27/50
主分类号
G03B27/50
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代理人
主权项
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