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发明名称
摘要
申请公布号
JPH0749444(Y2)
申请公布日期
1995.11.13
申请号
JP19870175994U
申请日期
1987.11.18
申请人
发明人
分类号
G02B6/42;(IPC1-7):G02B6/42
主分类号
G02B6/42
代理机构
代理人
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地址
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