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发明名称
摘要
申请公布号
JPS646492(Y2)
申请公布日期
1989.02.20
申请号
JP19840081665U
申请日期
1984.06.01
申请人
发明人
分类号
G02C11/04;(IPC1-7):G02C11/04
主分类号
G02C11/04
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