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发明名称
摘要
申请公布号
JP2552501(Y2)
申请公布日期
1997.10.29
申请号
JP19910013788U
申请日期
1991.02.18
申请人
发明人
分类号
G02B5/30;B65H41/00;G02F1/1335;(IPC1-7):G02F1/133
主分类号
G02B5/30
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