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发明名称
摘要
申请公布号
JPS57182716(U)
申请公布日期
1982.11.19
申请号
JP19810069642U
申请日期
1981.05.14
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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