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发明名称
摘要
申请公布号
JPS5518238(U)
申请公布日期
1980.02.05
申请号
JP19780100638U
申请日期
1978.07.21
申请人
发明人
分类号
G02B6/24;(IPC1-7):G02B7/26
主分类号
G02B6/24
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代理人
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