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发明名称
摘要
申请公布号
JP2505801(Y2)
申请公布日期
1996.08.07
申请号
JP19900034398U
申请日期
1990.03.30
申请人
发明人
分类号
G02B7/198;G02B7/18;(IPC1-7):G02B7/198
主分类号
G02B7/198
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