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发明名称
摘要
申请公布号
JP2741053(B2)
申请公布日期
1998.04.15
申请号
JP19890051040
申请日期
1989.03.03
申请人
发明人
分类号
G02B6/44;(IPC1-7):G02B6/44
主分类号
G02B6/44
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代理人
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