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发明名称
摘要
申请公布号
JPH0338978(U)
申请公布日期
1991.04.15
申请号
JP19890098355U
申请日期
1989.08.23
申请人
发明人
分类号
G03B21/56;G03B21/10;H04N5/64;H04N5/74;(IPC1-7):H04N5/74
主分类号
G03B21/56
代理机构
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