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发明名称
摘要
申请公布号
JPS56153917(U)
申请公布日期
1981.11.17
申请号
JP19800051170U
申请日期
1980.04.14
申请人
发明人
分类号
G02C1/00;G02C5/02;G02C5/14;(IPC1-7):G02C5/14
主分类号
G02C1/00
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代理人
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