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发明名称
摘要
申请公布号
JPH071608(Y2)
申请公布日期
1995.01.18
申请号
JP19870070203U
申请日期
1987.05.13
申请人
发明人
分类号
G02B7/02;(IPC1-7):G02B7/02
主分类号
G02B7/02
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代理人
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地址
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