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发明名称
摘要
申请公布号
JPH0345519(U)
申请公布日期
1991.04.26
申请号
JP19890106063U
申请日期
1989.09.08
申请人
发明人
分类号
G02C7/04;G02C13/00;(IPC1-7):G02C13/00
主分类号
G02C7/04
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代理人
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