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发明名称
摘要
申请公布号
JPS57205116(U)
申请公布日期
1982.12.27
申请号
JP19810091721U
申请日期
1981.06.23
申请人
发明人
分类号
G02C5/00;(IPC1-7):G02C5/00
主分类号
G02C5/00
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