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发明名称
摘要
申请公布号
JPH0375423(U)
申请公布日期
1991.07.29
申请号
JP19890136666U
申请日期
1989.11.24
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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