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发明名称
摘要
申请公布号
JPS5816606(U)
申请公布日期
1983.02.01
申请号
JP19810109914U
申请日期
1981.07.23
申请人
发明人
分类号
G02B6/44;G02B6/06;(IPC1-7):G02B5/17;G02B5/16
主分类号
G02B6/44
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代理人
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