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摘要
申请公布号
JPS5747776(Y2)
申请公布日期
1982.10.20
申请号
JP19800000157U
申请日期
1980.01.04
申请人
发明人
分类号
G02B6/40;(IPC1-7):G02B7/26
主分类号
G02B6/40
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