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发明名称
摘要
申请公布号
JP2893769(B2)
申请公布日期
1999.05.24
申请号
JP19890313176
申请日期
1989.12.01
申请人
SEIKOO EPUSON KK
发明人
ITO YOSHITAKA;UCHAMA SHOICHI
分类号
G02B5/30;(IPC1-7):G02B5/30
主分类号
G02B5/30
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代理人
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