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发明名称
摘要
申请公布号
JP2662605(B2)
申请公布日期
1997.10.15
申请号
JP19900311324
申请日期
1990.11.19
申请人
发明人
分类号
G02B6/38;(IPC1-7):G02B6/38
主分类号
G02B6/38
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代理人
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地址
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