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发明名称
摘要
申请公布号
JPS6430539(U)
申请公布日期
1989.02.23
申请号
JP19870123801U
申请日期
1987.08.14
申请人
发明人
分类号
G03B11/04;(IPC1-7):G03B11/04
主分类号
G03B11/04
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代理人
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